diff --git a/.gitignore b/.gitignore
index 3769d10aa12348464cb315fd336bf6b7234069cc..e917b9dfe024bf641baf6c35f8f8d1a1676fdad5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,10 +17,15 @@ coverage.txt
 target/
 classes
 
-
-# Gopkg.lock
+# go mod, go test
 vendor/
+coverage.txt
 
 logs/
 .vscode/
 coverage.txt
+
+# unit test
+remoting/zookeeper/zookeeper-4unittest/
+config_center/zookeeper/zookeeper-4unittest/
+registry/zookeeper/zookeeper-4unittest/
diff --git a/LICENSE b/LICENSE
index d80bbdaa1e12f60cc04fe2c14f97e293aff6dcd4..e76f9d9dd705daad997776153b1060f5bf8c2a1d 100644
--- a/LICENSE
+++ b/LICENSE
@@ -176,8 +176,6 @@
 
    END OF TERMS AND CONDITIONS
 
-   Copyright (c) 2016 ~ 2018 Alex Stocks.
-
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at
diff --git a/README.md b/README.md
index ccc6ae52edf5f5086213feb3d3d0823ed46e0b96..d01c5df56a4e33a6bd062c64201fc985c79077b1 100644
--- a/README.md
+++ b/README.md
@@ -33,19 +33,18 @@ Finished List:
 - Role: Consumer, Provider
 - Transport: HTTP, TCP
 - Codec: JsonRPC v2, Hessian v2
-- Registry: ZooKeeper/[etcd](https://github.com/apache/dubbo-go/pull/148)/[nacos](https://github.com/apache/dubbo-go/pull/151)
+- Registry: ZooKeeper/[etcd v3](https://github.com/apache/dubbo-go/pull/148)/[nacos](https://github.com/apache/dubbo-go/pull/151)/[consul](https://github.com/apache/dubbo-go/pull/121)
 - Configure Center: Zookeeper
-- Cluster Strategy: Failover/[Failfast](https://github.com/apache/dubbo-go/pull/140)/[Failsafe/Failback](https://github.com/apache/dubbo-go/pull/136)/Available/Broadcast
+- Cluster Strategy: Failover/[Failfast](https://github.com/apache/dubbo-go/pull/140)/[Failsafe/Failback](https://github.com/apache/dubbo-go/pull/136)/[Available](https://github.com/apache/dubbo-go/pull/155)/[Broadcast](https://github.com/apache/dubbo-go/pull/158)/[Forking](https://github.com/apache/dubbo-go/pull/161)
 - Load Balance: Random/[RoundRobin](https://github.com/apache/dubbo-go/pull/66)/[LeastActive](https://github.com/apache/dubbo-go/pull/65)
-- Filter: Echo Health Check
+- Filter: Echo Health Check/[Circuit break and service downgrade](https://github.com/apache/dubbo-go/pull/133)
 - Other feature: [generic invoke](https://github.com/apache/dubbo-go/pull/122)/start check/connecting certain provider/multi-protocols/multi-registries/multi-versions/service group
 
 Working List:
 
-- Cluster Strategy: Forking
 - Load Balance: ConsistentHash
 - Filter: TokenFilter/AccessLogFilter/CountFilter/ExecuteLimitFilter/TpsLimitFilter
-- Registry: k8s/consul
+- Registry: k8s
 - Configure Center: apollo
 - Dynamic Configuration Center & Metadata Center (dubbo v2.7.x)
 - Metrics: Promethus(dubbo v2.7.x)
diff --git a/README_CN.md b/README_CN.md
index e021be55765241be93f4c9c66cca1beb573cc1bb..9a769a196afa87eabc88649a5315b2772a8e4fef 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -32,11 +32,11 @@ Apache License, Version 2.0
 - 瑙掕壊绔�: Consumer, Provider
 - 浼犺緭鍗忚: HTTP, TCP
 - 搴忓垪鍖栧崗璁�: JsonRPC v2, Hessian v2
-- 娉ㄥ唽涓績: ZooKeeper/[etcd](https://github.com/apache/dubbo-go/pull/148)/[nacos](https://github.com/apache/dubbo-go/pull/151)
+- 娉ㄥ唽涓績: ZooKeeper/[etcd v3](https://github.com/apache/dubbo-go/pull/148)/[nacos](https://github.com/apache/dubbo-go/pull/151)/[consul](https://github.com/apache/dubbo-go/pull/121)
 - 閰嶇疆涓績: Zookeeper
-- 闆嗙兢绛栫暐: Failover/[Failfast](https://github.com/apache/dubbo-go/pull/140)/[Failsafe/Failback](https://github.com/apache/dubbo-go/pull/136)/Available/Broadcast
+- 闆嗙兢绛栫暐: Failover/[Failfast](https://github.com/apache/dubbo-go/pull/140)/[Failsafe/Failback](https://github.com/apache/dubbo-go/pull/136)/[Available](https://github.com/apache/dubbo-go/pull/155)/[Broadcast](https://github.com/apache/dubbo-go/pull/158)/[Forking](https://github.com/apache/dubbo-go/pull/161)
 - 璐熻浇鍧囪　绛栫暐: Random/[RoundRobin](https://github.com/apache/dubbo-go/pull/66)/[LeastActive](https://github.com/apache/dubbo-go/pull/65)
-- 杩囨护鍣�: Echo Health Check
+- 杩囨护鍣�: Echo Health Check/[鏈嶅姟鐔旀柇&闄嶇骇](https://github.com/apache/dubbo-go/pull/133)
 - 鍏朵粬鍔熻兘鏀寔: [娉涘寲璋冪敤](https://github.com/apache/dubbo-go/pull/122)/鍚姩鏃舵鏌�/鏈嶅姟鐩磋繛/澶氭湇鍔″崗璁�/澶氭敞鍐屼腑蹇�/澶氭湇鍔＄増鏈�/鏈嶅姟鍒嗙粍
 
 寮€鍙戜腑鍒楄〃:
@@ -44,7 +44,7 @@ Apache License, Version 2.0
 - 闆嗙兢绛栫暐: Forking
 - 璐熻浇鍧囪　绛栫暐: ConsistentHash
 - 杩囨护鍣�: TokenFilter/AccessLogFilter/CountFilter/ExecuteLimitFilter/TpsLimitFilter
-- 娉ㄥ唽涓績: etcd/k8s/consul/nacos
+- 娉ㄥ唽涓績: k8s
 - 閰嶇疆涓績: apollo
 - 鍔ㄦ€侀厤缃腑蹇� & 鍏冩暟鎹腑蹇� (dubbo v2.7.x)
 - Metrics: Promethus(dubbo v2.7.x)
diff --git a/before_ut.sh b/before_ut.sh
new file mode 100644
index 0000000000000000000000000000000000000000..7acee76ce5991ac1d06bff6a6325f083904f10b9
--- /dev/null
+++ b/before_ut.sh
@@ -0,0 +1,4 @@
+mkdir -p remoting/zookeeper/zookeeper-4unittest/contrib/fatjar config_center/zookeeper/zookeeper-4unittest/contrib/fatjar registry/zookeeper/zookeeper-4unittest/contrib/fatjar
+wget -P "remoting/zookeeper/zookeeper-4unittest/contrib/fatjar" https://github.com/dubbogo/resources/raw/master/zookeeper-4unitest/contrib/fatjar/zookeeper-3.4.9-fatjar.jar
+cp remoting/zookeeper/zookeeper-4unittest/contrib/fatjar/zookeeper-3.4.9-fatjar.jar config_center/zookeeper/zookeeper-4unittest/contrib/fatjar/
+cp remoting/zookeeper/zookeeper-4unittest/contrib/fatjar/zookeeper-3.4.9-fatjar.jar registry/zookeeper/zookeeper-4unittest/contrib/fatjar/
\ No newline at end of file
diff --git a/cluster/loadbalance/least_active_test.go b/cluster/loadbalance/least_active_test.go
index 7663ea3ce6252dcb7ddeaea92fb6bef8d95478d5..6bc6985678d7c392ad21b49ec341c3550265f622 100644
--- a/cluster/loadbalance/least_active_test.go
+++ b/cluster/loadbalance/least_active_test.go
@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package loadbalance
 
 import (
diff --git a/common/constant/key.go b/common/constant/key.go
index e8db5713e38df7ef2b0caead60636a249156eb12..feb6fc9aaabd86d98dc204d472433ef69947e78a 100644
--- a/common/constant/key.go
+++ b/common/constant/key.go
@@ -36,6 +36,7 @@ const (
 	OVERRIDE_PROVIDERS_KEY = "providerAddresses"
 	BEAN_NAME_KEY          = "bean.name"
 	GENERIC_KEY            = "generic"
+	CLASSIFIER_KEY         = "classifier"
 )
 
 const (
diff --git a/common/extension/configurator.go b/common/extension/configurator.go
index f7e1a263cd7541397869060bfd4bcbb6c88f1687..9551416fcdaf97046de5f5c3c13d27b2297ce39c 100644
--- a/common/extension/configurator.go
+++ b/common/extension/configurator.go
@@ -32,7 +32,7 @@ func SetConfigurator(name string, v func(url *common.URL) config_center.Configur
 
 func GetConfigurator(name string, url *common.URL) config_center.Configurator {
 	if configurator[name] == nil {
-		panic("config center for " + name + " is not existing, make sure you have import the package.")
+		panic("configurator for " + name + " is not existing, make sure you have import the package.")
 	}
 	return configurator[name](url)
 
@@ -43,14 +43,14 @@ func SetDefaultConfigurator(v func(url *common.URL) config_center.Configurator)
 
 func GetDefaultConfigurator(url *common.URL) config_center.Configurator {
 	if configurator["default"] == nil {
-		panic("config center for default is not existing, make sure you have import the package.")
+		panic("configurator for default is not existing, make sure you have import the package.")
 	}
 	return configurator["default"](url)
 
 }
 func GetDefaultConfiguratorFunc() func(url *common.URL) config_center.Configurator {
 	if configurator["default"] == nil {
-		panic("config center for default is not existing, make sure you have import the package.")
+		panic("configurator for default is not existing, make sure you have import the package.")
 	}
 	return configurator["default"]
 }
diff --git a/common/url.go b/common/url.go
index 4d9f6d1208cc5fa5dac052b43466c3246bb01e5a..aeae47b840eb0c959c1b4ddbdb5f075e4eaa2fd2 100644
--- a/common/url.go
+++ b/common/url.go
@@ -72,9 +72,9 @@ type baseUrl struct {
 	Location string // ip+port
 	Ip       string
 	Port     string
-	Params   url.Values
 	//url.Values is not safe map, add to avoid concurrent map read and map write error
-	paramsLock   sync.Mutex
+	paramsLock   sync.RWMutex
+	Params       url.Values
 	PrimitiveURL string
 	ctx          context.Context
 }
@@ -114,16 +114,19 @@ func WithParams(params url.Values) option {
 		url.Params = params
 	}
 }
+
 func WithParamsValue(key, val string) option {
 	return func(url *URL) {
 		url.Params.Set(key, val)
 	}
 }
+
 func WithProtocol(proto string) option {
 	return func(url *URL) {
 		url.Protocol = proto
 	}
 }
+
 func WithIp(ip string) option {
 	return func(url *URL) {
 		url.Ip = ip
@@ -147,6 +150,7 @@ func WithLocation(location string) option {
 		url.Location = location
 	}
 }
+
 func NewURLWithOptions(opts ...option) *URL {
 	url := &URL{}
 	for _, opt := range opts {
@@ -259,8 +263,8 @@ func (c URL) String() string {
 
 func (c URL) Key() string {
 	buildString := fmt.Sprintf(
-		"%s://%s:%s@%s:%s/?interface=%s&group=%s&version=%s&category_key=%s",
-		c.Protocol, c.Username, c.Password, c.Ip, c.Port, c.Service(), c.GetParam(constant.GROUP_KEY, ""), c.GetParam(constant.VERSION_KEY, ""), c.GetParam(constant.CATEGORY_KEY, ""))
+		"%s://%s:%s@%s:%s/?interface=%s&group=%s&version=%s",
+		c.Protocol, c.Username, c.Password, c.Ip, c.Port, c.Service(), c.GetParam(constant.GROUP_KEY, ""), c.GetParam(constant.VERSION_KEY, ""))
 	return buildString
 	//return c.ServiceKey()
 }
@@ -318,11 +322,11 @@ func (c *URL) AddParam(key string, value string) {
 
 func (c URL) GetParam(s string, d string) string {
 	var r string
-	c.paramsLock.Lock()
-	if r = c.Params.Get(s); r == "" {
+	c.paramsLock.RLock()
+	if r = c.Params.Get(s); len(r) == 0 {
 		r = d
 	}
-	c.paramsLock.Unlock()
+	c.paramsLock.RUnlock()
 	return r
 }
 func (c URL) GetParamAndDecoded(key string) (string, error) {
@@ -498,5 +502,9 @@ func MergeUrl(serviceUrl URL, referenceUrl *URL) URL {
 func (c *URL) Clone() *URL {
 	newUrl := &URL{}
 	copier.Copy(newUrl, c)
+	newUrl.Params = url.Values{}
+	for k, v := range c.Params {
+		newUrl.Params[k] = v
+	}
 	return newUrl
 }
diff --git a/config/config_loader.go b/config/config_loader.go
index b033aced5365dc58b06887d95b15b24ec91980a9..c5127c8c43622e7b26c998eb54e1b1803e6575ec 100644
--- a/config/config_loader.go
+++ b/config/config_loader.go
@@ -36,8 +36,8 @@ var (
 	maxWait        = 3
 )
 
-// loaded comsumer & provider config from xxx.yml, and log config from xxx.xml
-// Namely: dubbo.comsumer.xml & dubbo.provider.xml in java dubbo
+// loaded consumer & provider config from xxx.yml, and log config from xxx.xml
+// Namely: dubbo.consumer.xml & dubbo.provider.xml in java dubbo
 func init() {
 	var (
 		confConFile, confProFile string
@@ -70,9 +70,8 @@ func Load() {
 				SetConsumerService(genericService)
 			}
 			rpcService := GetConsumerService(key)
-
 			if rpcService == nil {
-				logger.Warnf("%s is not exsist!", key)
+				logger.Warnf("%s does not exist!", key)
 				continue
 			}
 			ref.id = key
@@ -99,7 +98,7 @@ func Load() {
 						break
 					}
 					if refconfig.invoker == nil {
-						logger.Warnf("The interface %s invoker not exsist , may you should check your interface config.", refconfig.InterfaceName)
+						logger.Warnf("The interface %s invoker not exist , may you should check your interface config.", refconfig.InterfaceName)
 					}
 				}
 			}
@@ -120,7 +119,7 @@ func Load() {
 		for key, svs := range providerConfig.Services {
 			rpcService := GetProviderService(key)
 			if rpcService == nil {
-				logger.Warnf("%s is not exsist!", key)
+				logger.Warnf("%s does not exist!", key)
 				continue
 			}
 			svs.id = key
diff --git a/config/consumer_config.go b/config/consumer_config.go
index 737339a0ad195201327eb4fac3445b18eb4bbf26..55082ffe41ad0a38ccbb6c2e788f0b609a8b4ef8 100644
--- a/config/consumer_config.go
+++ b/config/consumer_config.go
@@ -52,6 +52,7 @@ type ConsumerConfig struct {
 	Registries   map[string]*RegistryConfig  `yaml:"registries" json:"registries,omitempty" property:"registries"`
 	References   map[string]*ReferenceConfig `yaml:"references" json:"references,omitempty" property:"references"`
 	ProtocolConf interface{}                 `yaml:"protocol_conf" json:"protocol_conf,omitempty" property:"protocol_conf"`
+	FilterConf   interface{}                 `yaml:"filter_conf" json:"filter_conf,omitempty" property:"filter_conf" `
 }
 
 func (*ConsumerConfig) Prefix() string {
diff --git a/config/provider_config.go b/config/provider_config.go
index a504eea237dc47f66c4ed27d334ce5eea5c87d45..db8abaf73e9609b3f3ac1db68e89a3d66068659b 100644
--- a/config/provider_config.go
+++ b/config/provider_config.go
@@ -46,6 +46,7 @@ type ProviderConfig struct {
 	Services          map[string]*ServiceConfig  `yaml:"services" json:"services,omitempty" property:"services"`
 	Protocols         map[string]*ProtocolConfig `yaml:"protocols" json:"protocols,omitempty" property:"protocols"`
 	ProtocolConf      interface{}                `yaml:"protocol_conf" json:"protocol_conf,omitempty" property:"protocol_conf" `
+	FilterConf        interface{}                `yaml:"filter_conf" json:"filter_conf,omitempty" property:"filter_conf" `
 }
 
 func (*ProviderConfig) Prefix() string {
diff --git a/config/reference_config_test.go b/config/reference_config_test.go
index 774fece29f5158b6840b3384b5c56846cc4da37b..d36fa04d7461cfb6cd4c9d2d739e9863355df077 100644
--- a/config/reference_config_test.go
+++ b/config/reference_config_test.go
@@ -20,8 +20,6 @@ package config
 import (
 	"sync"
 	"testing"
-
-	"github.com/apache/dubbo-go/common/constant"
 )
 
 import (
@@ -31,6 +29,7 @@ import (
 import (
 	"github.com/apache/dubbo-go/cluster/cluster_impl"
 	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/common/extension"
 	"github.com/apache/dubbo-go/protocol"
 )
diff --git a/config/service_config_test.go b/config/service_config_test.go
index e111c8d110a14a039f3ab1a6c14f8044847f87e5..f1de3ac08afdd7aac504c2c56dcb594011e35da6 100644
--- a/config/service_config_test.go
+++ b/config/service_config_test.go
@@ -21,10 +21,6 @@ import (
 	"testing"
 )
 
-import (
-	"github.com/stretchr/testify/assert"
-)
-
 import (
 	"github.com/apache/dubbo-go/common/extension"
 )
@@ -116,9 +112,6 @@ func Test_Export(t *testing.T) {
 		service := providerConfig.Services[i]
 		service.Implement(&MockService{})
 		service.Export()
-		assert.Condition(t, func() bool {
-			return len(service.exporters) > 0
-		})
 	}
 	providerConfig = nil
 }
diff --git a/config_center/configurator/mock.go b/config_center/configurator/mock.go
index 8547d562e1e815f6d5fff2c421c24ed62316f7fc..4ccfcbd6379f54b0d4c43333b0d537a00f7a014d 100644
--- a/config_center/configurator/mock.go
+++ b/config_center/configurator/mock.go
@@ -1,7 +1,24 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package configurator
 
 import (
 	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/config_center"
 )
 
@@ -18,5 +35,7 @@ func (c *mockConfigurator) GetUrl() *common.URL {
 }
 
 func (c *mockConfigurator) Configure(url *common.URL) {
-
+	if cluster := c.GetUrl().GetParam(constant.CLUSTER_KEY, ""); cluster != "" {
+		url.Params.Set(constant.CLUSTER_KEY, cluster)
+	}
 }
diff --git a/config_center/configurator/override.go b/config_center/configurator/override.go
index 78ab3d8533cca43c0b15bfc4f089958948d07c59..a4a97294d22e922bc4edf90c5ddebff0f1587a75 100644
--- a/config_center/configurator/override.go
+++ b/config_center/configurator/override.go
@@ -1,3 +1,19 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package configurator
 
 import (
diff --git a/config_center/configurator/override_test.go b/config_center/configurator/override_test.go
index 0e763469c80cf8c91072de989e5d3f48f86b7b75..e03056ded50257e420afb50fe10c68093fd3b760 100644
--- a/config_center/configurator/override_test.go
+++ b/config_center/configurator/override_test.go
@@ -1,18 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package configurator
 
 import (
 	"context"
+	"testing"
+)
+import (
+	"github.com/stretchr/testify/assert"
+)
+import (
 	"github.com/apache/dubbo-go/common"
 	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/common/extension"
-	"github.com/stretchr/testify/assert"
-	"testing"
 )
 
 func Test_configureVerison2p6(t *testing.T) {
 	url, err := common.NewURL(context.Background(), "override://0.0.0.0:0/com.xxx.mock.userProvider?group=1&version=1&cluster=failfast&application=BDTService")
 	assert.NoError(t, err)
-	configurator := extension.GetConfigurator("override", &url)
+	configurator := extension.GetConfigurator("default", &url)
 	assert.Equal(t, "override", configurator.GetUrl().Protocol)
 
 	providerUrl, err := common.NewURL(context.Background(), "jsonrpc://127.0.0.1:20001/com.ikurento.user.UserProvider?anyhost=true&app.version=0.0.1&application=BDTService&category=providers&cluster=failover&dubbo=dubbo-provider-golang-2.6.0&environment=dev&group=&interface=com.ikurento.user.UserProvider&ip=10.32.20.124&loadbalance=random&methods.GetUser.loadbalance=random&methods.GetUser.retries=1&methods.GetUser.weight=0&module=dubbogo+user-info+server&name=BDTService&organization=ikurento.com&owner=ZX&pid=64225&retries=0&service.filter=echo&side=provider&timestamp=1562076628&version=&warmup=100")
@@ -23,7 +43,7 @@ func Test_configureVerison2p6(t *testing.T) {
 func Test_configureVerisonOverrideAddr(t *testing.T) {
 	url, err := common.NewURL(context.Background(), "override://0.0.0.0:0/com.xxx.mock.userProvider?group=1&version=1&cluster=failfast&application=BDTService&providerAddresses=127.0.0.2:20001|127.0.0.3:20001")
 	assert.NoError(t, err)
-	configurator := extension.GetConfigurator("override", &url)
+	configurator := extension.GetConfigurator("default", &url)
 	assert.Equal(t, "override", configurator.GetUrl().Protocol)
 
 	providerUrl, err := common.NewURL(context.Background(), "jsonrpc://127.0.0.1:20001/com.ikurento.user.UserProvider?anyhost=true&app.version=0.0.1&application=BDTService&category=providers&cluster=failover&dubbo=dubbo-provider-golang-2.6.0&environment=dev&group=&interface=com.ikurento.user.UserProvider&ip=10.32.20.124&loadbalance=random&methods.GetUser.loadbalance=random&methods.GetUser.retries=1&methods.GetUser.weight=0&module=dubbogo+user-info+server&name=BDTService&organization=ikurento.com&owner=ZX&pid=64225&retries=0&service.filter=echo&side=provider&timestamp=1562076628&version=&warmup=100")
@@ -34,7 +54,7 @@ func Test_configureVerisonOverrideAddr(t *testing.T) {
 func Test_configureVerison2p6WithIp(t *testing.T) {
 	url, err := common.NewURL(context.Background(), "override://127.0.0.1:20001/com.xxx.mock.userProvider?group=1&version=1&cluster=failfast&application=BDTService")
 	assert.NoError(t, err)
-	configurator := extension.GetConfigurator("override", &url)
+	configurator := extension.GetConfigurator("default", &url)
 	assert.Equal(t, "override", configurator.GetUrl().Protocol)
 
 	providerUrl, err := common.NewURL(context.Background(), "jsonrpc://127.0.0.1:20001/com.ikurento.user.UserProvider?anyhost=true&app.version=0.0.1&application=BDTService&category=providers&cluster=failover&dubbo=dubbo-provider-golang-2.6.0&environment=dev&group=&interface=com.ikurento.user.UserProvider&ip=10.32.20.124&loadbalance=random&methods.GetUser.loadbalance=random&methods.GetUser.retries=1&methods.GetUser.weight=0&module=dubbogo+user-info+server&name=BDTService&organization=ikurento.com&owner=ZX&pid=64225&retries=0&service.filter=echo&side=provider&timestamp=1562076628&version=&warmup=100")
@@ -46,7 +66,7 @@ func Test_configureVerison2p6WithIp(t *testing.T) {
 func Test_configureVerison2p7(t *testing.T) {
 	url, err := common.NewURL(context.Background(), "jsonrpc://0.0.0.0:20001/com.xxx.mock.userProvider?group=1&version=1&cluster=failfast&application=BDTService&configVersion=1.0&side=provider")
 	assert.NoError(t, err)
-	configurator := extension.GetConfigurator("override", &url)
+	configurator := extension.GetConfigurator("default", &url)
 
 	providerUrl, err := common.NewURL(context.Background(), "jsonrpc://127.0.0.1:20001/com.ikurento.user.UserProvider?anyhost=true&app.version=0.0.1&application=BDTService&category=providers&cluster=failover&dubbo=dubbo-provider-golang-2.6.0&environment=dev&group=&interface=com.ikurento.user.UserProvider&ip=10.32.20.124&loadbalance=random&methods.GetUser.loadbalance=random&methods.GetUser.retries=1&methods.GetUser.weight=0&module=dubbogo+user-info+server&name=BDTService&organization=ikurento.com&owner=ZX&pid=64225&retries=0&service.filter=echo&side=provider&timestamp=1562076628&version=&warmup=100")
 	configurator.Configure(&providerUrl)
diff --git a/config_center/zookeeper/impl_test.go b/config_center/zookeeper/impl_test.go
index b200b9cdbf4cb638bb4a8ae66d2fe5947f861046..2f620457f75b7e35f713423e3841d0272cbd0730 100644
--- a/config_center/zookeeper/impl_test.go
+++ b/config_center/zookeeper/impl_test.go
@@ -19,7 +19,6 @@ package zookeeper
 import (
 	"context"
 	"fmt"
-	"github.com/apache/dubbo-go/config_center/parser"
 	"sync"
 	"testing"
 )
@@ -32,7 +31,7 @@ import (
 import (
 	"github.com/apache/dubbo-go/common"
 	"github.com/apache/dubbo-go/config_center"
-	"github.com/apache/dubbo-go/remoting"
+	"github.com/apache/dubbo-go/config_center/parser"
 )
 
 func initZkData(group string, t *testing.T) (*zk.TestCluster, *zookeeperDynamicConfiguration) {
@@ -162,7 +161,7 @@ type mockDataListener struct {
 	event string
 }
 
-func (l *mockDataListener) Process(configType *remoting.ConfigChangeEvent) {
+func (l *mockDataListener) Process(configType *config_center.ConfigChangeEvent) {
 	fmt.Println("process!!!!!")
 	l.wg.Done()
 	l.event = configType.Key
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/app/client.go b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/app/client.go
index d27af7a31778403d518e6454de7ebab4b9b5cdf7..44ffbd98f691d6ffef0485bc54159662662f8b16 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/app/client.go
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/app/client.go
@@ -135,7 +135,7 @@ func initSignal() {
 		case syscall.SIGHUP:
 			// reload()
 		default:
-			go time.AfterFunc(time.Duration(survivalTimeout)*time.Second, func() {
+			time.AfterFunc(time.Duration(survivalTimeout)*time.Second, func() {
 				logger.Warnf("app exit now by force...")
 				os.Exit(1)
 			})
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/bin/load.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/bin/load.sh
index 07d5d15eac7b7974845e36c3807e7ec55875de65..ffa240b29d9e76761a151e7462092b86908de6f6 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/bin/load.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/bin/load.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : dubbogo app devops script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-05-13 02:01
-# FILE    : load.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 APP_NAME="APPLICATION_NAME"
 APP_ARGS=""
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/common/app.properties b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/common/app.properties
index 6bbd6db850ceeaf5ff873fee01a3578237cbd557..e10868f4d292765c7eeb2e8bb8b1684a44f56a14 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/common/app.properties
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/common/app.properties
@@ -1,13 +1,19 @@
-# dubbogo application configure script
-# ******************************************************
-# DESC    : dubbogo environment variable
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:29
-# FILE    : app.properties
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 export TARGET_EXEC_NAME="user_info_client"
 # BUILD_PACKAGE="dubbogo-examples/user-info/client/app"
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/common/build.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/common/build.sh
index e72418297ad2f0ac6985476b5a8d5e03b9e7584e..c9a9e87c73ef45195d6f70acccf9374ee6cb906b 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/common/build.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/common/build.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:28
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 rm -rf target/
 
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/linux/dev.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/linux/dev.sh
index 3373f01b948b708cd7bc1958c9d56a9042c60a68..eada737c8d0939d4237a6d218fc2a07efdbff381 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/linux/dev.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/linux/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/linux/release.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/linux/release.sh
index 34867b8b3488778cd76a1dc7802393dcab6b0df0..10eb3d73f8760d394537b90b7aeff83ca2b243ed 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/linux/release.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/linux/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/linux/test.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/linux/test.sh
index 1bbbefd1e14e08c16deaf859e2841f4d1fe88e9c..78b650c0d49483f9f6862532afa5c483b618475a 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/linux/test.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/linux/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/mac/dev.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/mac/dev.sh
index b68ac83b6524a6713cd90c4fc5968fe64b1a9545..c8284769909e62f0142c29e3a63177bf2826593f 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/mac/dev.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/mac/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/mac/release.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/mac/release.sh
index 688288b3b1b989e8af70a3674b34ea8e0668f3b4..91c2dfee79b1499b640420191174f980eac187bb 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/mac/release.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/mac/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/mac/test.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/mac/test.sh
index 56d6c11ecd6a1dc5984c74b88c10be9239e57428..a7853f5e2d51df8e3e9509621952c44bca0d1a2d 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/mac/test.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/mac/test.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/windows/dev.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/windows/dev.sh
index 91cf6f23bcbecb26db798469a30529261aabbbb6..10a3866c0f4ed8e1070c4d5641259c04073df6cb 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/windows/dev.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/windows/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/windows/release.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/windows/release.sh
index f317720bd53d9c9e5f8f484b6eb682c9c736af0c..21af573fa3842d47959d5726b11b81d5fff5b8df 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/windows/release.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/windows/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/windows/test.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/windows/test.sh
index 7dd2bec5260e647b57a46aaa37acc098babff068..2104da8b5909957c165eedc2f7d6866a890e9e6d 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/windows/test.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-client/assembly/windows/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/app/server.go b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/app/server.go
index cd982992171fdf674e560bfb4ed280c1951cccde..04c614d732d3ed39d921796050249907fbc530d5 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/app/server.go
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/app/server.go
@@ -73,7 +73,7 @@ func initSignal() {
 		case syscall.SIGHUP:
 			// reload()
 		default:
-			go time.AfterFunc(time.Duration(float64(survivalTimeout)*float64(time.Second)), func() {
+			time.AfterFunc(time.Duration(float64(survivalTimeout)*float64(time.Second)), func() {
 				logger.Warnf("app exit now by force...")
 				os.Exit(1)
 			})
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/bin/load.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/bin/load.sh
index 47fc5e38ded155a43c30b8cbf4d2a5ae04b58d0c..90077c2471d7d5553ddea6402c7e2c06867cba8e 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/bin/load.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/bin/load.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : dubbogo app devops script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-05-13 02:01
-# FILE    : load.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 APP_NAME="APPLICATION_NAME"
 APP_ARGS=""
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/common/app.properties b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/common/app.properties
index dffb755b0811dd140d3f04e232f5f80ff60181df..1f0827eb512b9bcb3c2428f8e0b50d76f65743ef 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/common/app.properties
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/common/app.properties
@@ -1,13 +1,19 @@
-# dubbogo application configure script
-# ******************************************************
-# DESC    : application environment variable
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:29
-# FILE    : app.properties
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 TARGET_EXEC_NAME="user_info_server"
 # BUILD_PACKAGE="dubbogo-examples/user-info/server/app"
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/common/build.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/common/build.sh
index 15ac904f7c265d942d7018439719af7e7391aa41..89a95ce679ca711824a2de0888686be79d96f505 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/common/build.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/common/build.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:28
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 rm -rf target/
 
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/linux/dev.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/linux/dev.sh
index 55886f09fb4873be84cfa46aae592f5f000120a4..d830ac98c2b9328791d00d5160d487b1a12b5fed 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/linux/dev.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/linux/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2018-06-24 17:32
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/linux/release.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/linux/release.sh
index 9772ad9614583917d62beba2db9fcaefea63e1ed..99303800b0fbcd7f8dfea668dcf395f126fb99f6 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/linux/release.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/linux/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/linux/test.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/linux/test.sh
index 2fc4a98862bee5ef11a23e1b74058627a899181d..87144bb973095acaf8c17b0ec3bf42f643d0b95f 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/linux/test.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/linux/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/mac/dev.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/mac/dev.sh
index 5dfa78490b895ce556c809ead32b6f517a5f1450..3a7659b2d57e0e2502950d76ec6c938abf2b7513 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/mac/dev.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/mac/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2018-06-24 17:32
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/mac/release.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/mac/release.sh
index 1ec21c7b511ccce9eddfac22a2374b57a7a697bf..1c4bce4bf825fe401823ec33025e004a476ccaaf 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/mac/release.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/mac/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/mac/test.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/mac/test.sh
index d34914c7dbed0e442b4accf51a3ecdf7c2984db8..69206e32fed343eb87c04190b509b16482125542 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/mac/test.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/mac/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 set -e
 
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/windows/dev.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/windows/dev.sh
index 97fbb6f698e500ad08d971b13cc1ffd00cd97803..011fb41148f205bc329118a3c75e52854c0ecfd3 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/windows/dev.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/windows/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2018-06-24 17:34
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/windows/release.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/windows/release.sh
index 782cb10c7828eb277b5905f10f8dd6ad1c2d6bed..679a26a7dc77a9bc0ccbf119eac3caba252cadc9 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/windows/release.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/windows/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/windows/test.sh b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/windows/test.sh
index 2037ddecf2545f1543d5d28be728fb0899722098..4a36de0f3a26b804601de703c62a8062bd0623f4 100644
--- a/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/windows/test.sh
+++ b/examples/configcenter/zookeeper/dubbo/with-configcenter-go-server/assembly/windows/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/app/client.go b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/app/client.go
index 5b1634788c455f6b8f0fb964f25a07b525492cf0..db76d939a1a7e2bd5ae04b5968dd5af7aaf69a2e 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/app/client.go
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/app/client.go
@@ -120,7 +120,7 @@ func initSignal() {
 		case syscall.SIGHUP:
 		// reload()
 		default:
-			go time.AfterFunc(time.Duration(survivalTimeout)*time.Second, func() {
+			time.AfterFunc(time.Duration(survivalTimeout)*time.Second, func() {
 				logger.Warnf("app exit now by force...")
 				os.Exit(1)
 			})
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/bin/load.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/bin/load.sh
index 07d5d15eac7b7974845e36c3807e7ec55875de65..ffa240b29d9e76761a151e7462092b86908de6f6 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/bin/load.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/bin/load.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : dubbogo app devops script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-05-13 02:01
-# FILE    : load.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 APP_NAME="APPLICATION_NAME"
 APP_ARGS=""
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/common/app.properties b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/common/app.properties
index 6bbd6db850ceeaf5ff873fee01a3578237cbd557..e10868f4d292765c7eeb2e8bb8b1684a44f56a14 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/common/app.properties
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/common/app.properties
@@ -1,13 +1,19 @@
-# dubbogo application configure script
-# ******************************************************
-# DESC    : dubbogo environment variable
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:29
-# FILE    : app.properties
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 export TARGET_EXEC_NAME="user_info_client"
 # BUILD_PACKAGE="dubbogo-examples/user-info/client/app"
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/common/build.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/common/build.sh
index 06b212db6c3dcc28e5e43666284662bcb7abcae4..c9a9e87c73ef45195d6f70acccf9374ee6cb906b 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/common/build.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/common/build.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:28
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 rm -rf target/
 
@@ -15,7 +21,7 @@ PROJECT_HOME=`pwd`
 TARGET_FOLDER=${PROJECT_HOME}/target/${GOOS}
 
 TARGET_SBIN_NAME=${TARGET_EXEC_NAME}
-version=`cat app/version.go | grep Version | grep -v "Apache"  | awk -F '=' '{print $2}' | awk -F '"' '{print $2}'`
+version=`cat app/version.go | grep Version | grep -v "Apache" | awk -F '=' '{print $2}' | awk -F '"' '{print $2}'`
 if [[ ${GOOS} == "windows" ]]; then
     TARGET_SBIN_NAME=${TARGET_SBIN_NAME}.exe
 fi
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/linux/dev.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/linux/dev.sh
index 3373f01b948b708cd7bc1958c9d56a9042c60a68..eada737c8d0939d4237a6d218fc2a07efdbff381 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/linux/dev.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/linux/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/linux/release.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/linux/release.sh
index 34867b8b3488778cd76a1dc7802393dcab6b0df0..10eb3d73f8760d394537b90b7aeff83ca2b243ed 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/linux/release.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/linux/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/linux/test.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/linux/test.sh
index 1bbbefd1e14e08c16deaf859e2841f4d1fe88e9c..78b650c0d49483f9f6862532afa5c483b618475a 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/linux/test.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/linux/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/mac/dev.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/mac/dev.sh
index b68ac83b6524a6713cd90c4fc5968fe64b1a9545..c8284769909e62f0142c29e3a63177bf2826593f 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/mac/dev.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/mac/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/mac/release.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/mac/release.sh
index 688288b3b1b989e8af70a3674b34ea8e0668f3b4..91c2dfee79b1499b640420191174f980eac187bb 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/mac/release.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/mac/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/mac/test.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/mac/test.sh
index 56d6c11ecd6a1dc5984c74b88c10be9239e57428..a7853f5e2d51df8e3e9509621952c44bca0d1a2d 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/mac/test.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/mac/test.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/windows/dev.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/windows/dev.sh
index 91cf6f23bcbecb26db798469a30529261aabbbb6..10a3866c0f4ed8e1070c4d5641259c04073df6cb 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/windows/dev.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/windows/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/windows/release.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/windows/release.sh
index f317720bd53d9c9e5f8f484b6eb682c9c736af0c..21af573fa3842d47959d5726b11b81d5fff5b8df 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/windows/release.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/windows/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/windows/test.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/windows/test.sh
index 7dd2bec5260e647b57a46aaa37acc098babff068..2104da8b5909957c165eedc2f7d6866a890e9e6d 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/windows/test.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-client/assembly/windows/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/app/server.go b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/app/server.go
index 0a0e72915fef0ca4613f78a87fa1057152c1cc9a..23cfd415533cf81b900be1982b9ceae567a845f3 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/app/server.go
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/app/server.go
@@ -62,7 +62,7 @@ func initSignal() {
 		case syscall.SIGHUP:
 		// reload()
 		default:
-			go time.AfterFunc(time.Duration(float64(survivalTimeout)*float64(time.Second)), func() {
+			time.AfterFunc(time.Duration(float64(survivalTimeout)*float64(time.Second)), func() {
 				logger.Warnf("app exit now by force...")
 				os.Exit(1)
 			})
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/bin/load.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/bin/load.sh
index 47fc5e38ded155a43c30b8cbf4d2a5ae04b58d0c..90077c2471d7d5553ddea6402c7e2c06867cba8e 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/bin/load.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/bin/load.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : dubbogo app devops script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-05-13 02:01
-# FILE    : load.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 APP_NAME="APPLICATION_NAME"
 APP_ARGS=""
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/common/app.properties b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/common/app.properties
index dffb755b0811dd140d3f04e232f5f80ff60181df..1f0827eb512b9bcb3c2428f8e0b50d76f65743ef 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/common/app.properties
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/common/app.properties
@@ -1,13 +1,19 @@
-# dubbogo application configure script
-# ******************************************************
-# DESC    : application environment variable
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:29
-# FILE    : app.properties
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 TARGET_EXEC_NAME="user_info_server"
 # BUILD_PACKAGE="dubbogo-examples/user-info/server/app"
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/common/build.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/common/build.sh
index 15ac904f7c265d942d7018439719af7e7391aa41..89a95ce679ca711824a2de0888686be79d96f505 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/common/build.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/common/build.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:28
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 rm -rf target/
 
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/linux/dev.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/linux/dev.sh
index 55886f09fb4873be84cfa46aae592f5f000120a4..d830ac98c2b9328791d00d5160d487b1a12b5fed 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/linux/dev.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/linux/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2018-06-24 17:32
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/linux/release.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/linux/release.sh
index 9772ad9614583917d62beba2db9fcaefea63e1ed..99303800b0fbcd7f8dfea668dcf395f126fb99f6 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/linux/release.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/linux/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/linux/test.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/linux/test.sh
index 2fc4a98862bee5ef11a23e1b74058627a899181d..87144bb973095acaf8c17b0ec3bf42f643d0b95f 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/linux/test.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/linux/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/mac/dev.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/mac/dev.sh
index 5dfa78490b895ce556c809ead32b6f517a5f1450..3a7659b2d57e0e2502950d76ec6c938abf2b7513 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/mac/dev.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/mac/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2018-06-24 17:32
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/mac/release.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/mac/release.sh
index 1ec21c7b511ccce9eddfac22a2374b57a7a697bf..1c4bce4bf825fe401823ec33025e004a476ccaaf 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/mac/release.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/mac/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/mac/test.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/mac/test.sh
index d34914c7dbed0e442b4accf51a3ecdf7c2984db8..69206e32fed343eb87c04190b509b16482125542 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/mac/test.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/mac/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 set -e
 
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/windows/dev.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/windows/dev.sh
index 97fbb6f698e500ad08d971b13cc1ffd00cd97803..011fb41148f205bc329118a3c75e52854c0ecfd3 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/windows/dev.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/windows/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2018-06-24 17:34
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/windows/release.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/windows/release.sh
index 782cb10c7828eb277b5905f10f8dd6ad1c2d6bed..679a26a7dc77a9bc0ccbf119eac3caba252cadc9 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/windows/release.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/windows/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/windows/test.sh b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/windows/test.sh
index 2037ddecf2545f1543d5d28be728fb0899722098..4a36de0f3a26b804601de703c62a8062bd0623f4 100644
--- a/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/windows/test.sh
+++ b/examples/configcenter/zookeeper/jsonrpc/with-configcenter-go-server/assembly/windows/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/consul/README.md b/examples/consul/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..bb475526e8c1ccc6c9cc2365caa2a06b2f69d997
--- /dev/null
+++ b/examples/consul/README.md
@@ -0,0 +1,44 @@
+# consul
+
+Examples for consul registry. Before running examples below, make sure that consul has been started.
+
+## requirement
+
+- consul
+- go 1.12
+- java 8
+- maven 3.6.1
+
+## go-server
+
+```
+$ cd examples/consul/go-server
+$ export CONF_PROVIDER_FILE_PATH="config/server.yml"
+$ export APP_LOG_CONF_FILE="config/log.yml"
+$ go run .
+```
+
+## go-client
+
+```
+$ cd examples/consul/go-client
+$ export CONF_CONSUMER_FILE_PATH="config/client.yml"
+$ export APP_LOG_CONF_FILE="config/log.yml"
+$ go run .
+```
+
+## java-server
+
+```
+$ cd examples/consul/java-server
+$ mvn clean package
+$ java -jar target/java-server-1.0.0.jar
+```
+
+## java-client
+
+```
+$ cd examples/consul/java-client
+$ mvn clean package
+$ java -jar target/java-client-1.0.0.jar
+```
\ No newline at end of file
diff --git a/examples/consul/go-client/client.go b/examples/consul/go-client/client.go
new file mode 100644
index 0000000000000000000000000000000000000000..73a9bc9c3cddb7fc23cae2cd8d776bc68ef26af8
--- /dev/null
+++ b/examples/consul/go-client/client.go
@@ -0,0 +1,43 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"fmt"
+)
+
+import (
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/impl"
+	_ "github.com/apache/dubbo-go/protocol/dubbo"
+	_ "github.com/apache/dubbo-go/registry/consul"
+	_ "github.com/apache/dubbo-go/registry/protocol"
+)
+
+func main() {
+	config.Load()
+
+	message, err := dubboService.SayHello([]interface{}{"world"})
+	if err != nil {
+		panic(err)
+	}
+	fmt.Println(message)
+}
diff --git a/examples/consul/go-client/config/client.yml b/examples/consul/go-client/config/client.yml
new file mode 100644
index 0000000000000000000000000000000000000000..8a7458c384bc80b5096aa1b3496f9f1430753a07
--- /dev/null
+++ b/examples/consul/go-client/config/client.yml
@@ -0,0 +1,52 @@
+application_config:
+  organization : "ikurento.com"
+  name  : "BDTService"
+  module : "dubbogo user-info client"
+  version : "0.0.1"
+  owner : "ZX"
+  environment : "test"
+
+registries :
+  "consul":
+    protocol: "consul"
+    timeout	: "3s"
+    address: "127.0.0.1:8500"
+    username: ""
+    password: ""
+
+references:
+  "DubboService":
+    protocol : "dubbo"
+    interface : "dubbo.DubboService"
+    cluster: "failover"
+    methods :
+      - name: "SayHello"
+        retries: 3
+
+protocol_conf:
+  dubbo:
+    reconnect_interval: 0
+    connection_number: 2
+    heartbeat_period: "5s"
+    session_timeout: "20s"
+    fail_fast_timeout: "5s"
+    pool_size: 64
+    pool_ttl: 600
+    getty_session_param:
+      compress_encoding: false
+      tcp_no_delay: true
+      tcp_keep_alive: true
+      keep_alive_period: "120s"
+      tcp_r_buf_size: 262144
+      tcp_w_buf_size: 65536
+      pkg_rq_size: 1024
+      pkg_wq_size: 512
+      tcp_read_timeout: "1s"
+      tcp_write_timeout: "5s"
+      wait_timeout: "1s"
+      max_msg_len: 10240
+      session_name: "client"
+
+check: true
+request_timeout : "3s"
+connect_timeout : "3s"
diff --git a/examples/consul/go-client/config/log.yml b/examples/consul/go-client/config/log.yml
new file mode 100644
index 0000000000000000000000000000000000000000..baee0b7248484e425f88f35ab128212c931ff85e
--- /dev/null
+++ b/examples/consul/go-client/config/log.yml
@@ -0,0 +1,28 @@
+
+level: "info"
+development: false
+disableCaller: false
+disableStacktrace: true
+sampling:
+encoding: "console"
+
+# encoder
+encoderConfig:
+  messageKey: "message"
+  levelKey: "level"
+  timeKey: "time"
+  nameKey: "logger"
+  callerKey: "caller"
+  stacktraceKey: "stacktrace"
+  lineEnding: ""
+  levelEncoder: "capitalColor"
+  timeEncoder: "iso8601"
+  durationEncoder: "seconds"
+  callerEncoder: "short"
+  nameEncoder: ""
+
+outputPaths:
+  - "stderr"
+errorOutputPaths:
+  - "stderr"
+initialFields:
diff --git a/examples/consul/go-client/service.go b/examples/consul/go-client/service.go
new file mode 100644
index 0000000000000000000000000000000000000000..0f7cca59857f0b66e8fab51c0ec95e3adfead44a
--- /dev/null
+++ b/examples/consul/go-client/service.go
@@ -0,0 +1,36 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"github.com/apache/dubbo-go/config"
+)
+
+var dubboService = new(DubboService)
+
+func init() {
+	config.SetConsumerService(dubboService)
+}
+
+type DubboService struct {
+	SayHello func(req interface{}) (string, error)
+}
+
+func (s *DubboService) Reference() string {
+	return "DubboService"
+}
diff --git a/examples/consul/go-server/config/log.yml b/examples/consul/go-server/config/log.yml
new file mode 100644
index 0000000000000000000000000000000000000000..baee0b7248484e425f88f35ab128212c931ff85e
--- /dev/null
+++ b/examples/consul/go-server/config/log.yml
@@ -0,0 +1,28 @@
+
+level: "info"
+development: false
+disableCaller: false
+disableStacktrace: true
+sampling:
+encoding: "console"
+
+# encoder
+encoderConfig:
+  messageKey: "message"
+  levelKey: "level"
+  timeKey: "time"
+  nameKey: "logger"
+  callerKey: "caller"
+  stacktraceKey: "stacktrace"
+  lineEnding: ""
+  levelEncoder: "capitalColor"
+  timeEncoder: "iso8601"
+  durationEncoder: "seconds"
+  callerEncoder: "short"
+  nameEncoder: ""
+
+outputPaths:
+  - "stderr"
+errorOutputPaths:
+  - "stderr"
+initialFields:
diff --git a/examples/consul/go-server/config/server.yml b/examples/consul/go-server/config/server.yml
new file mode 100644
index 0000000000000000000000000000000000000000..c12800e68d1c32793cb6860561f3240f196a6a78
--- /dev/null
+++ b/examples/consul/go-server/config/server.yml
@@ -0,0 +1,52 @@
+application_config:
+  organization : "ikurento.com"
+  name : "BDTService"
+  module : "dubbogo user-info server"
+  version : "0.0.1"
+  owner : "ZX"
+  environment : "test"
+
+registries :
+  "consul":
+    protocol: "consul"
+    timeout	: "3s"
+    address: "127.0.0.1:8500"
+    username: ""
+    password: ""
+
+services:
+  "DubboService":
+    protocol : "dubbo"
+    interface : "dubbo.DubboService"
+    loadbalance: "random"
+    warmup: "100"
+    cluster: "failover"
+    methods:
+      - name: "SayHello"
+        retries: 1
+        loadbalance: "random"
+
+protocols:
+  "dubbo1":
+      name: "dubbo"
+      port: 20000
+
+protocol_conf:
+  dubbo:
+    session_number: 700
+    fail_fast_timeout: "5s"
+    session_timeout: "20s"
+    getty_session_param:
+      compress_encoding: false
+      tcp_no_delay: true
+      tcp_keep_alive: true
+      keep_alive_period: "120s"
+      tcp_r_buf_size: 262144
+      tcp_w_buf_size: 65536
+      pkg_rq_size: 1024
+      pkg_wq_size: 512
+      tcp_read_timeout: "1s"
+      tcp_write_timeout: "5s"
+      wait_timeout: "1s"
+      max_msg_len: 1024
+      session_name: "server"
diff --git a/examples/consul/go-server/server.go b/examples/consul/go-server/server.go
new file mode 100644
index 0000000000000000000000000000000000000000..798fe7c7b0632bf7d366d4bf500846fd6ced73e9
--- /dev/null
+++ b/examples/consul/go-server/server.go
@@ -0,0 +1,70 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+)
+
+import (
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
+	"github.com/apache/dubbo-go/common/logger"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/filter/impl"
+	_ "github.com/apache/dubbo-go/protocol/dubbo"
+	_ "github.com/apache/dubbo-go/registry/consul"
+	_ "github.com/apache/dubbo-go/registry/protocol"
+)
+
+var (
+	survivalTimeout = int(3e9)
+)
+
+func main() {
+	config.Load()
+	initSignal()
+}
+
+func initSignal() {
+	signals := make(chan os.Signal, 1)
+	// It is not possible to block SIGKILL or syscall.SIGSTOP
+	signal.Notify(signals, os.Interrupt, os.Kill, syscall.SIGHUP, syscall.SIGQUIT, syscall.SIGTERM, syscall.SIGINT)
+	for {
+		sig := <-signals
+		logger.Infof("get signal %s", sig.String())
+		switch sig {
+		case syscall.SIGHUP:
+			// reload()
+		default:
+			go time.AfterFunc(time.Duration(float64(survivalTimeout)*float64(time.Second)), func() {
+				logger.Warnf("app exit now by force...")
+				os.Exit(1)
+			})
+
+			// The program exits normally or timeout forcibly exits.
+			fmt.Println("provider app exit now...")
+			return
+		}
+	}
+}
diff --git a/examples/consul/go-server/service.go b/examples/consul/go-server/service.go
new file mode 100644
index 0000000000000000000000000000000000000000..7c08ec99b93ce1d383fad3e717b4fdf2da0b5d6c
--- /dev/null
+++ b/examples/consul/go-server/service.go
@@ -0,0 +1,36 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"github.com/apache/dubbo-go/config"
+)
+
+func init() {
+	config.SetProviderService(new(DubboService))
+}
+
+type DubboService struct{}
+
+func (s *DubboService) SayHello(message string) (string, error) {
+	return "hello " + message, nil
+}
+
+func (s *DubboService) Reference() string {
+	return "DubboService"
+}
diff --git a/examples/consul/java-client/.gitignore b/examples/consul/java-client/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..0bbcf418ec53691d6895a6ea8eeb56a264f2b735
--- /dev/null
+++ b/examples/consul/java-client/.gitignore
@@ -0,0 +1,7 @@
+.idea
+.gradle
+*.iml
+dependency-reduced-pom.xml
+out/
+build/
+target/
\ No newline at end of file
diff --git a/examples/consul/java-client/pom.xml b/examples/consul/java-client/pom.xml
new file mode 100644
index 0000000000000000000000000000000000000000..3e54e77d492416b439c8fe441dae492eb019229a
--- /dev/null
+++ b/examples/consul/java-client/pom.xml
@@ -0,0 +1,88 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>consul</groupId>
+    <artifactId>java-client</artifactId>
+    <version>1.0.0</version>
+
+    <properties>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+            <version>1.2.17</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo</artifactId>
+            <version>2.7.1</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.ecwid.consul</groupId>
+            <artifactId>consul-api</artifactId>
+            <version>1.4.2</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>commons-logging</groupId>
+            <artifactId>commons-logging</artifactId>
+            <version>1.2</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.1.1</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                        <configuration>
+                            <transformers>
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                                    <mainClass>dubbo.client.Main</mainClass>
+                                </transformer>
+                            </transformers>
+                            <filters>
+                                <filter>
+                                    <artifact>*:*</artifact>
+                                    <excludes>
+                                        <exclude>META-INF/*.SF</exclude>
+                                        <exclude>META-INF/*.DSA</exclude>
+                                        <exclude>META-INF/*.RSA</exclude>
+                                    </excludes>
+                                </filter>
+                            </filters>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>
\ No newline at end of file
diff --git a/examples/consul/java-client/src/main/java/dubbo/DubboService.java b/examples/consul/java-client/src/main/java/dubbo/DubboService.java
new file mode 100644
index 0000000000000000000000000000000000000000..4eb2d8c10ae76a3f15ab2619cc369ff3564b97af
--- /dev/null
+++ b/examples/consul/java-client/src/main/java/dubbo/DubboService.java
@@ -0,0 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package dubbo;
+
+public interface DubboService {
+    String SayHello(String message);
+}
diff --git a/examples/consul/java-client/src/main/java/dubbo/client/Main.java b/examples/consul/java-client/src/main/java/dubbo/client/Main.java
new file mode 100644
index 0000000000000000000000000000000000000000..d9880bf2c4625dbebe0225502ebf42f98b36d896
--- /dev/null
+++ b/examples/consul/java-client/src/main/java/dubbo/client/Main.java
@@ -0,0 +1,43 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+package dubbo.client;
+
+import org.apache.dubbo.config.ApplicationConfig;
+import org.apache.dubbo.config.ReferenceConfig;
+import org.apache.dubbo.config.RegistryConfig;
+import dubbo.DubboService;
+
+public class Main {
+    public static void main(String[] args) {
+        ApplicationConfig applicationConfig = new ApplicationConfig();
+        applicationConfig.setName("java-client");
+        applicationConfig.setQosPort(33333);
+
+        RegistryConfig registryConfig = new RegistryConfig();
+        registryConfig.setAddress("consul://127.0.0.1:8500");
+
+        ReferenceConfig<DubboService> referenceConfig = new ReferenceConfig<>();
+        referenceConfig.setApplication(applicationConfig);
+        referenceConfig.setRegistry(registryConfig);
+        referenceConfig.setInterface(DubboService.class);
+
+        DubboService dubboService = referenceConfig.get();
+        System.out.println(dubboService.SayHello("world"));
+    }
+}
diff --git a/examples/consul/java-client/src/main/resources/log4j.properties b/examples/consul/java-client/src/main/resources/log4j.properties
new file mode 100644
index 0000000000000000000000000000000000000000..097fa4309c1811750de0164bfaf2ebf354615d57
--- /dev/null
+++ b/examples/consul/java-client/src/main/resources/log4j.properties
@@ -0,0 +1,4 @@
+log4j.appender.Stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.Stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.Stdout.layout.conversionPattern=[%p] %c | %m\n
+log4j.rootLogger=INFO,Stdout
\ No newline at end of file
diff --git a/examples/consul/java-server/.gitignore b/examples/consul/java-server/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..0bbcf418ec53691d6895a6ea8eeb56a264f2b735
--- /dev/null
+++ b/examples/consul/java-server/.gitignore
@@ -0,0 +1,7 @@
+.idea
+.gradle
+*.iml
+dependency-reduced-pom.xml
+out/
+build/
+target/
\ No newline at end of file
diff --git a/examples/consul/java-server/pom.xml b/examples/consul/java-server/pom.xml
new file mode 100644
index 0000000000000000000000000000000000000000..07a1e5bc414a6a5d3688ff9ed2624f34d3622d59
--- /dev/null
+++ b/examples/consul/java-server/pom.xml
@@ -0,0 +1,89 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>consul</groupId>
+    <artifactId>java-server</artifactId>
+    <version>1.0.0</version>
+
+    <properties>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+            <version>1.2.17</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo</artifactId>
+            <version>2.7.1</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.ecwid.consul</groupId>
+            <artifactId>consul-api</artifactId>
+            <version>1.4.2</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>commons-logging</groupId>
+            <artifactId>commons-logging</artifactId>
+            <version>1.2</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.1.1</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                        <configuration>
+                            <transformers>
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                                    <mainClass>dubbo.server.Main</mainClass>
+                                </transformer>
+                            </transformers>
+                            <filters>
+                                <filter>
+                                    <artifact>*:*</artifact>
+                                    <excludes>
+                                        <exclude>META-INF/*.SF</exclude>
+                                        <exclude>META-INF/*.DSA</exclude>
+                                        <exclude>META-INF/*.RSA</exclude>
+                                    </excludes>
+                                </filter>
+                            </filters>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>
\ No newline at end of file
diff --git a/examples/consul/java-server/src/main/java/dubbo/DubboService.java b/examples/consul/java-server/src/main/java/dubbo/DubboService.java
new file mode 100644
index 0000000000000000000000000000000000000000..de6b5b53355d72f678355de5773aeb1f00ec1751
--- /dev/null
+++ b/examples/consul/java-server/src/main/java/dubbo/DubboService.java
@@ -0,0 +1,5 @@
+package dubbo;
+
+public interface DubboService {
+    String SayHello(String message);
+}
diff --git a/examples/consul/java-server/src/main/java/dubbo/server/Impl/DubboServiceImpl.java b/examples/consul/java-server/src/main/java/dubbo/server/Impl/DubboServiceImpl.java
new file mode 100644
index 0000000000000000000000000000000000000000..61c5e9039c1eaaad0dcebaa0c43653eb23f2f92b
--- /dev/null
+++ b/examples/consul/java-server/src/main/java/dubbo/server/Impl/DubboServiceImpl.java
@@ -0,0 +1,11 @@
+package dubbo.server.Impl;
+
+import dubbo.DubboService;
+
+public class DubboServiceImpl implements DubboService {
+
+    @Override
+    public String SayHello(String message) {
+        return "hello " + message;
+    }
+}
diff --git a/examples/consul/java-server/src/main/java/dubbo/server/Main.java b/examples/consul/java-server/src/main/java/dubbo/server/Main.java
new file mode 100644
index 0000000000000000000000000000000000000000..91c7b0b912f4fb27e6d108d2975bcd8a6d08f4a4
--- /dev/null
+++ b/examples/consul/java-server/src/main/java/dubbo/server/Main.java
@@ -0,0 +1,53 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+package dubbo.server;
+
+import org.apache.dubbo.config.ApplicationConfig;
+import org.apache.dubbo.config.ProtocolConfig;
+import org.apache.dubbo.config.RegistryConfig;
+import org.apache.dubbo.config.ServiceConfig;
+import dubbo.DubboService;
+import dubbo.server.Impl.DubboServiceImpl;
+
+import java.io.IOException;
+
+public class Main {
+    public static void main(String[] args) throws IOException {
+        ApplicationConfig applicationConfig = new ApplicationConfig();
+        applicationConfig.setName("java-server");
+
+        RegistryConfig registryConfig = new RegistryConfig();
+        registryConfig.setAddress("consul://127.0.0.1:8500");
+
+        ProtocolConfig protocolConfig = new ProtocolConfig();
+        protocolConfig.setName("dubbo");
+        protocolConfig.setHost("127.0.0.1");
+        protocolConfig.setPort(12345);
+
+        ServiceConfig<DubboService> serviceConfig = new ServiceConfig<>();
+        serviceConfig.setApplication(applicationConfig);
+        serviceConfig.setRegistry(registryConfig);
+        serviceConfig.setProtocol(protocolConfig);
+        serviceConfig.setInterface(DubboService.class);
+        serviceConfig.setRef(new DubboServiceImpl());
+        serviceConfig.export();
+
+        System.in.read();
+    }
+}
diff --git a/examples/consul/java-server/src/main/resources/log4j.properties b/examples/consul/java-server/src/main/resources/log4j.properties
new file mode 100644
index 0000000000000000000000000000000000000000..097fa4309c1811750de0164bfaf2ebf354615d57
--- /dev/null
+++ b/examples/consul/java-server/src/main/resources/log4j.properties
@@ -0,0 +1,4 @@
+log4j.appender.Stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.Stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.Stdout.layout.conversionPattern=[%p] %c | %m\n
+log4j.rootLogger=INFO,Stdout
\ No newline at end of file
diff --git a/examples/general/dubbo/go-client/app/client.go b/examples/general/dubbo/go-client/app/client.go
index e839b0b2776d8e3b2aba2756d2a622bea2b8e88d..60adad356b8a8ff843034dd8e6086a2b832c7792 100644
--- a/examples/general/dubbo/go-client/app/client.go
+++ b/examples/general/dubbo/go-client/app/client.go
@@ -78,7 +78,7 @@ func initSignal() {
 		case syscall.SIGHUP:
 			// reload()
 		default:
-			go time.AfterFunc(time.Duration(survivalTimeout), func() {
+			time.AfterFunc(time.Duration(survivalTimeout), func() {
 				logger.Warnf("app exit now by force...")
 				os.Exit(1)
 			})
diff --git a/examples/general/dubbo/go-client/assembly/bin/load.sh b/examples/general/dubbo/go-client/assembly/bin/load.sh
index 07d5d15eac7b7974845e36c3807e7ec55875de65..ffa240b29d9e76761a151e7462092b86908de6f6 100644
--- a/examples/general/dubbo/go-client/assembly/bin/load.sh
+++ b/examples/general/dubbo/go-client/assembly/bin/load.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : dubbogo app devops script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-05-13 02:01
-# FILE    : load.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 APP_NAME="APPLICATION_NAME"
 APP_ARGS=""
diff --git a/examples/general/dubbo/go-client/assembly/common/app.properties b/examples/general/dubbo/go-client/assembly/common/app.properties
index 6bbd6db850ceeaf5ff873fee01a3578237cbd557..e10868f4d292765c7eeb2e8bb8b1684a44f56a14 100644
--- a/examples/general/dubbo/go-client/assembly/common/app.properties
+++ b/examples/general/dubbo/go-client/assembly/common/app.properties
@@ -1,13 +1,19 @@
-# dubbogo application configure script
-# ******************************************************
-# DESC    : dubbogo environment variable
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:29
-# FILE    : app.properties
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 export TARGET_EXEC_NAME="user_info_client"
 # BUILD_PACKAGE="dubbogo-examples/user-info/client/app"
diff --git a/examples/general/dubbo/go-client/assembly/common/build.sh b/examples/general/dubbo/go-client/assembly/common/build.sh
index e72418297ad2f0ac6985476b5a8d5e03b9e7584e..c9a9e87c73ef45195d6f70acccf9374ee6cb906b 100644
--- a/examples/general/dubbo/go-client/assembly/common/build.sh
+++ b/examples/general/dubbo/go-client/assembly/common/build.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:28
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 rm -rf target/
 
diff --git a/examples/general/dubbo/go-client/assembly/linux/dev.sh b/examples/general/dubbo/go-client/assembly/linux/dev.sh
index 3373f01b948b708cd7bc1958c9d56a9042c60a68..eada737c8d0939d4237a6d218fc2a07efdbff381 100644
--- a/examples/general/dubbo/go-client/assembly/linux/dev.sh
+++ b/examples/general/dubbo/go-client/assembly/linux/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/dubbo/go-client/assembly/linux/release.sh b/examples/general/dubbo/go-client/assembly/linux/release.sh
index 34867b8b3488778cd76a1dc7802393dcab6b0df0..10eb3d73f8760d394537b90b7aeff83ca2b243ed 100644
--- a/examples/general/dubbo/go-client/assembly/linux/release.sh
+++ b/examples/general/dubbo/go-client/assembly/linux/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/dubbo/go-client/assembly/linux/test.sh b/examples/general/dubbo/go-client/assembly/linux/test.sh
index 1bbbefd1e14e08c16deaf859e2841f4d1fe88e9c..78b650c0d49483f9f6862532afa5c483b618475a 100644
--- a/examples/general/dubbo/go-client/assembly/linux/test.sh
+++ b/examples/general/dubbo/go-client/assembly/linux/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/dubbo/go-client/assembly/mac/dev.sh b/examples/general/dubbo/go-client/assembly/mac/dev.sh
index b68ac83b6524a6713cd90c4fc5968fe64b1a9545..c8284769909e62f0142c29e3a63177bf2826593f 100644
--- a/examples/general/dubbo/go-client/assembly/mac/dev.sh
+++ b/examples/general/dubbo/go-client/assembly/mac/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/dubbo/go-client/assembly/mac/release.sh b/examples/general/dubbo/go-client/assembly/mac/release.sh
index 688288b3b1b989e8af70a3674b34ea8e0668f3b4..91c2dfee79b1499b640420191174f980eac187bb 100644
--- a/examples/general/dubbo/go-client/assembly/mac/release.sh
+++ b/examples/general/dubbo/go-client/assembly/mac/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/dubbo/go-client/assembly/mac/test.sh b/examples/general/dubbo/go-client/assembly/mac/test.sh
index 56d6c11ecd6a1dc5984c74b88c10be9239e57428..a7853f5e2d51df8e3e9509621952c44bca0d1a2d 100644
--- a/examples/general/dubbo/go-client/assembly/mac/test.sh
+++ b/examples/general/dubbo/go-client/assembly/mac/test.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 
 set -e
diff --git a/examples/general/dubbo/go-client/assembly/windows/dev.sh b/examples/general/dubbo/go-client/assembly/windows/dev.sh
index 91cf6f23bcbecb26db798469a30529261aabbbb6..10a3866c0f4ed8e1070c4d5641259c04073df6cb 100644
--- a/examples/general/dubbo/go-client/assembly/windows/dev.sh
+++ b/examples/general/dubbo/go-client/assembly/windows/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/dubbo/go-client/assembly/windows/release.sh b/examples/general/dubbo/go-client/assembly/windows/release.sh
index f317720bd53d9c9e5f8f484b6eb682c9c736af0c..21af573fa3842d47959d5726b11b81d5fff5b8df 100644
--- a/examples/general/dubbo/go-client/assembly/windows/release.sh
+++ b/examples/general/dubbo/go-client/assembly/windows/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/dubbo/go-client/assembly/windows/test.sh b/examples/general/dubbo/go-client/assembly/windows/test.sh
index 7dd2bec5260e647b57a46aaa37acc098babff068..2104da8b5909957c165eedc2f7d6866a890e9e6d 100644
--- a/examples/general/dubbo/go-client/assembly/windows/test.sh
+++ b/examples/general/dubbo/go-client/assembly/windows/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/dubbo/go-server/app/app b/examples/general/dubbo/go-server/app/app
deleted file mode 100755
index 43e170c50ba2e8ac2dbe6e5efa0e2bdff1b3194a..0000000000000000000000000000000000000000
Binary files a/examples/general/dubbo/go-server/app/app and /dev/null differ
diff --git a/examples/general/dubbo/go-server/app/server.go b/examples/general/dubbo/go-server/app/server.go
index ac92b879b15cb88ebc71fc5df90675b01760c899..0ffd6309c607168d75073c296eb60d21dadbca2d 100644
--- a/examples/general/dubbo/go-server/app/server.go
+++ b/examples/general/dubbo/go-server/app/server.go
@@ -74,7 +74,7 @@ func initSignal() {
 		case syscall.SIGHUP:
 			// reload()
 		default:
-			go time.AfterFunc(time.Duration(survivalTimeout), func() {
+			time.AfterFunc(time.Duration(survivalTimeout), func() {
 				logger.Warnf("app exit now by force...")
 				os.Exit(1)
 			})
diff --git a/examples/general/dubbo/go-server/app/user_provider.go b/examples/general/dubbo/go-server/app/user_provider.go
index fdf0a3abb2ac26cc2cbfa5971db3f02b18fe0be0..87f0d85f96c9664399ab0dd22eaf4af5c742da33 100644
--- a/examples/general/dubbo/go-server/app/user_provider.go
+++ b/examples/general/dubbo/go-server/app/user_provider.go
@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package main
 
 import (
diff --git a/examples/general/dubbo/go-server/app/user_provider1.go b/examples/general/dubbo/go-server/app/user_provider1.go
index 3edc816b592f9e165f149a792a9401a25c8c73c0..afc2a1d238752657e1b070979a6555b51dfb8d19 100644
--- a/examples/general/dubbo/go-server/app/user_provider1.go
+++ b/examples/general/dubbo/go-server/app/user_provider1.go
@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package main
 
 import (
diff --git a/examples/general/dubbo/go-server/app/user_provider2.go b/examples/general/dubbo/go-server/app/user_provider2.go
index d28bcc33963ef73b372508e057679a5910948c25..cc19e0b5a176c186d3c593867eb90b221c01f943 100644
--- a/examples/general/dubbo/go-server/app/user_provider2.go
+++ b/examples/general/dubbo/go-server/app/user_provider2.go
@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package main
 
 import (
diff --git a/examples/general/dubbo/go-server/assembly/bin/load.sh b/examples/general/dubbo/go-server/assembly/bin/load.sh
index 47fc5e38ded155a43c30b8cbf4d2a5ae04b58d0c..90077c2471d7d5553ddea6402c7e2c06867cba8e 100644
--- a/examples/general/dubbo/go-server/assembly/bin/load.sh
+++ b/examples/general/dubbo/go-server/assembly/bin/load.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : dubbogo app devops script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-05-13 02:01
-# FILE    : load.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 APP_NAME="APPLICATION_NAME"
 APP_ARGS=""
diff --git a/examples/general/dubbo/go-server/assembly/common/app.properties b/examples/general/dubbo/go-server/assembly/common/app.properties
index dffb755b0811dd140d3f04e232f5f80ff60181df..1f0827eb512b9bcb3c2428f8e0b50d76f65743ef 100644
--- a/examples/general/dubbo/go-server/assembly/common/app.properties
+++ b/examples/general/dubbo/go-server/assembly/common/app.properties
@@ -1,13 +1,19 @@
-# dubbogo application configure script
-# ******************************************************
-# DESC    : application environment variable
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:29
-# FILE    : app.properties
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 TARGET_EXEC_NAME="user_info_server"
 # BUILD_PACKAGE="dubbogo-examples/user-info/server/app"
diff --git a/examples/general/dubbo/go-server/assembly/common/build.sh b/examples/general/dubbo/go-server/assembly/common/build.sh
index 15ac904f7c265d942d7018439719af7e7391aa41..89a95ce679ca711824a2de0888686be79d96f505 100644
--- a/examples/general/dubbo/go-server/assembly/common/build.sh
+++ b/examples/general/dubbo/go-server/assembly/common/build.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:28
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 rm -rf target/
 
diff --git a/examples/general/dubbo/go-server/assembly/linux/dev.sh b/examples/general/dubbo/go-server/assembly/linux/dev.sh
index 55886f09fb4873be84cfa46aae592f5f000120a4..d830ac98c2b9328791d00d5160d487b1a12b5fed 100644
--- a/examples/general/dubbo/go-server/assembly/linux/dev.sh
+++ b/examples/general/dubbo/go-server/assembly/linux/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2018-06-24 17:32
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/dubbo/go-server/assembly/linux/release.sh b/examples/general/dubbo/go-server/assembly/linux/release.sh
index 9772ad9614583917d62beba2db9fcaefea63e1ed..99303800b0fbcd7f8dfea668dcf395f126fb99f6 100644
--- a/examples/general/dubbo/go-server/assembly/linux/release.sh
+++ b/examples/general/dubbo/go-server/assembly/linux/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/dubbo/go-server/assembly/linux/test.sh b/examples/general/dubbo/go-server/assembly/linux/test.sh
index 2fc4a98862bee5ef11a23e1b74058627a899181d..87144bb973095acaf8c17b0ec3bf42f643d0b95f 100644
--- a/examples/general/dubbo/go-server/assembly/linux/test.sh
+++ b/examples/general/dubbo/go-server/assembly/linux/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/dubbo/go-server/assembly/mac/dev.sh b/examples/general/dubbo/go-server/assembly/mac/dev.sh
index 5dfa78490b895ce556c809ead32b6f517a5f1450..3a7659b2d57e0e2502950d76ec6c938abf2b7513 100644
--- a/examples/general/dubbo/go-server/assembly/mac/dev.sh
+++ b/examples/general/dubbo/go-server/assembly/mac/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2018-06-24 17:32
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/dubbo/go-server/assembly/mac/release.sh b/examples/general/dubbo/go-server/assembly/mac/release.sh
index 1ec21c7b511ccce9eddfac22a2374b57a7a697bf..1c4bce4bf825fe401823ec33025e004a476ccaaf 100644
--- a/examples/general/dubbo/go-server/assembly/mac/release.sh
+++ b/examples/general/dubbo/go-server/assembly/mac/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/dubbo/go-server/assembly/mac/test.sh b/examples/general/dubbo/go-server/assembly/mac/test.sh
index d34914c7dbed0e442b4accf51a3ecdf7c2984db8..69206e32fed343eb87c04190b509b16482125542 100644
--- a/examples/general/dubbo/go-server/assembly/mac/test.sh
+++ b/examples/general/dubbo/go-server/assembly/mac/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 set -e
 
diff --git a/examples/general/dubbo/go-server/assembly/windows/dev.sh b/examples/general/dubbo/go-server/assembly/windows/dev.sh
index 97fbb6f698e500ad08d971b13cc1ffd00cd97803..011fb41148f205bc329118a3c75e52854c0ecfd3 100644
--- a/examples/general/dubbo/go-server/assembly/windows/dev.sh
+++ b/examples/general/dubbo/go-server/assembly/windows/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2018-06-24 17:34
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/dubbo/go-server/assembly/windows/release.sh b/examples/general/dubbo/go-server/assembly/windows/release.sh
index 782cb10c7828eb277b5905f10f8dd6ad1c2d6bed..679a26a7dc77a9bc0ccbf119eac3caba252cadc9 100644
--- a/examples/general/dubbo/go-server/assembly/windows/release.sh
+++ b/examples/general/dubbo/go-server/assembly/windows/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/dubbo/go-server/assembly/windows/test.sh b/examples/general/dubbo/go-server/assembly/windows/test.sh
index 2037ddecf2545f1543d5d28be728fb0899722098..4a36de0f3a26b804601de703c62a8062bd0623f4 100644
--- a/examples/general/dubbo/go-server/assembly/windows/test.sh
+++ b/examples/general/dubbo/go-server/assembly/windows/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/dubbo/java-client/build.sh b/examples/general/dubbo/java-client/build.sh
index 1286b53ee6180d73ae325ca91228c7e0accfe0c5..c869acfb45794244767305c485ecabde1548e10c 100644
--- a/examples/general/dubbo/java-client/build.sh
+++ b/examples/general/dubbo/java-client/build.sh
@@ -1,8 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# EMAIL   : alexstocks@foxmail.com
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 # rm src/main/resources/META-INF/spring/dubbo.consumer.xml
 # cp src/main/resources/META-INF/spring/dubbo-protocol.consumer.xml src/main/resources/META-INF/spring/dubbo.consumer.xml
diff --git a/examples/general/dubbo/java-client/pom.xml b/examples/general/dubbo/java-client/pom.xml
index c3e3464f2073220c765c2510aad124e0a80289e8..4065414ac598fb7bee7d14d625019d6534daba7f 100755
--- a/examples/general/dubbo/java-client/pom.xml
+++ b/examples/general/dubbo/java-client/pom.xml
@@ -1,18 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
- - Copyright 1999-2011 Alibaba Group.
- -
- - Licensed under the Apache License, Version 2.0 (the "License");
- - you may not use this file except in compliance with the License.
- - You may obtain a copy of the License at
- -
- -      http://www.apache.org/licenses/LICENSE-2.0
- -
- - Unless required by applicable law or agreed to in writing, software
- - distributed under the License is distributed on an "AS IS" BASIS,
- - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- - See the License for the specific language governing permissions and
- - limitations under the License.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
+
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
 		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
diff --git a/examples/general/dubbo/java-client/src/main/assembly/assembly.xml b/examples/general/dubbo/java-client/src/main/assembly/assembly.xml
index 25235d9064e299dc9a6ff976b08b7e63aedca5d3..47757d1c93d8375c0cfe15a74be3dad09317f8da 100644
--- a/examples/general/dubbo/java-client/src/main/assembly/assembly.xml
+++ b/examples/general/dubbo/java-client/src/main/assembly/assembly.xml
@@ -1,18 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
- - Copyright 1999-2011 Alibaba Group.
- -  
- - Licensed under the Apache License, Version 2.0 (the "License");
- - you may not use this file except in compliance with the License.
- - You may obtain a copy of the License at
- -  
- -      http://www.apache.org/licenses/LICENSE-2.0
- -  
- - Unless required by applicable law or agreed to in writing, software
- - distributed under the License is distributed on an "AS IS" BASIS,
- - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- - See the License for the specific language governing permissions and
- - limitations under the License.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
+
 <assembly>
 	<id>assembly</id>
 	<formats>
diff --git a/examples/general/dubbo/java-client/src/main/java/com/ikurento/user/Consumer.java b/examples/general/dubbo/java-client/src/main/java/com/ikurento/user/Consumer.java
index 5c9870eecacb51115b266e8e13d81e02323d5a74..dc11dba56f5ec21f62344cd7e9a96eee5fb02486 100644
--- a/examples/general/dubbo/java-client/src/main/java/com/ikurento/user/Consumer.java
+++ b/examples/general/dubbo/java-client/src/main/java/com/ikurento/user/Consumer.java
@@ -1,12 +1,19 @@
-// *****************************************************
-// DESC    : dubbo consumer
-// AUTHOR  : writtey by 鍖呭杈�(https://github.com/baozh)
-// VERSION : 1.0
-// LICENCE : Apache License 2.0
-// EMAIL   : alexstocks@foxmail.com
-// MOD     : 2016-10-19 17:03
-// FILE    : Consumer.java
-// ******************************************************
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
 package com.ikurento.user;
 
diff --git a/examples/general/dubbo/java-client/src/main/java/com/ikurento/user/Gender.java b/examples/general/dubbo/java-client/src/main/java/com/ikurento/user/Gender.java
index 7bcfae3b23bf6ee2cca52cef7dc37e1c880d76a0..e606be79c9f633919132570b69e4d0a6588c9c8a 100644
--- a/examples/general/dubbo/java-client/src/main/java/com/ikurento/user/Gender.java
+++ b/examples/general/dubbo/java-client/src/main/java/com/ikurento/user/Gender.java
@@ -1,10 +1,22 @@
-package com.ikurento.user;
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
-// https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
+package com.ikurento.user;
 
-/**
- * Created by wuwen on 15/4/7.
- */
 public enum  Gender {
     MAN,
     WOMAN
diff --git a/examples/general/dubbo/java-client/src/main/java/com/ikurento/user/User.java b/examples/general/dubbo/java-client/src/main/java/com/ikurento/user/User.java
index 6966210df13a5d9bf4a6f7de262d3a72470950f0..7f228b3a657af4b6d9cd78b5f61fda021a6f633e 100644
--- a/examples/general/dubbo/java-client/src/main/java/com/ikurento/user/User.java
+++ b/examples/general/dubbo/java-client/src/main/java/com/ikurento/user/User.java
@@ -1,11 +1,24 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
-// https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
 
 import java.util.Date;
 
-/**
- * Created by wuwen on 15/4/7.
- */
 public class User {
 
     private String id;
diff --git a/examples/general/dubbo/java-client/src/main/java/com/ikurento/user/UserProvider.java b/examples/general/dubbo/java-client/src/main/java/com/ikurento/user/UserProvider.java
index ed765d4c0c6b6b9b382666b29d90c9dd25206f8d..a330d9829aef7efff15a3d9ce004b22843890705 100644
--- a/examples/general/dubbo/java-client/src/main/java/com/ikurento/user/UserProvider.java
+++ b/examples/general/dubbo/java-client/src/main/java/com/ikurento/user/UserProvider.java
@@ -1,6 +1,4 @@
 /*
- * Copyright 1999-2011 Alibaba Group.
- *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -13,8 +11,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package com.ikurento.user;
-// https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
 
 import java.util.List;
 
diff --git a/examples/general/dubbo/java-client/src/main/resources/META-INF/spring/dubbo.consumer.xml b/examples/general/dubbo/java-client/src/main/resources/META-INF/spring/dubbo.consumer.xml
index e7e5445a951614f599a63029f6d42508aaa4fccf..67c6264ea925bb60e38241f0a51e1ce7842b1d90 100644
--- a/examples/general/dubbo/java-client/src/main/resources/META-INF/spring/dubbo.consumer.xml
+++ b/examples/general/dubbo/java-client/src/main/resources/META-INF/spring/dubbo.consumer.xml
@@ -1,19 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
- - Copyright 1999-2011 Alibaba Group.
- -
- - Licensed under the Apache License, Version 2.0 (the "License");
- - you may not use this file except in compliance with the License.
- - You may obtain a copy of the License at
- -
- -      http://www.apache.org/licenses/LICENSE-2.0
- -
- - Unless required by applicable law or agreed to in writing, software
- - distributed under the License is distributed on an "AS IS" BASIS,
- - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- - See the License for the specific language governing permissions and
- - limitations under the License.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
+
+
 <beans xmlns="http://www.springframework.org/schema/beans"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
diff --git a/examples/general/dubbo/java-client/src/main/resources/META-INF/spring/service.xml b/examples/general/dubbo/java-client/src/main/resources/META-INF/spring/service.xml
index db9fc3cba5a359b8835af53b81e50f8296d2e489..041d7c336558c9ea662ed2db3a3b9301c9eec4a2 100644
--- a/examples/general/dubbo/java-client/src/main/resources/META-INF/spring/service.xml
+++ b/examples/general/dubbo/java-client/src/main/resources/META-INF/spring/service.xml
@@ -1,19 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
- - Copyright 1999-2011 Alibaba Group.
- -  
- - Licensed under the Apache License, Version 2.0 (the "License");
- - you may not use this file except in compliance with the License.
- - You may obtain a copy of the License at
- -  
- -      http://www.apache.org/licenses/LICENSE-2.0
- -  
- - Unless required by applicable law or agreed to in writing, software
- - distributed under the License is distributed on an "AS IS" BASIS,
- - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- - See the License for the specific language governing permissions and
- - limitations under the License.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
+
 <beans xmlns="http://www.springframework.org/schema/beans"
 	xmlns:context="http://www.springframework.org/schema/context"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
diff --git a/examples/general/dubbo/java-server/build.sh b/examples/general/dubbo/java-server/build.sh
index 0c197da639c1c1d9375e18c24dd73366c49deefe..7b5755be183f5b301f0963fcc4a4eace8a341574 100644
--- a/examples/general/dubbo/java-server/build.sh
+++ b/examples/general/dubbo/java-server/build.sh
@@ -1,8 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# EMAIL   : alexstocks@foxmail.com
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 # mvn dependency:sources
 mvn clean package -Dmaven.test.skip
diff --git a/examples/general/dubbo/java-server/pom.xml b/examples/general/dubbo/java-server/pom.xml
index 975157865e59f24693d755dd20b0aac4b179a793..9b811e9f78a3db3cb742ce5870b5d68b55bd681c 100644
--- a/examples/general/dubbo/java-server/pom.xml
+++ b/examples/general/dubbo/java-server/pom.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/examples/general/dubbo/java-server/script/debug.sh b/examples/general/dubbo/java-server/script/debug.sh
index 27c5d800d846018127e762944151aa8e9ad4495d..1038cd7ff7f65a2a07ce21414732ab891aef67ff 100644
--- a/examples/general/dubbo/java-server/script/debug.sh
+++ b/examples/general/dubbo/java-server/script/debug.sh
@@ -1,13 +1,19 @@
-#!/us1r/bin/env bash
-# ******************************************************
-# DESC    :
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-09 21:52
-# FILE    : to debug user info dubbo server
-# ******************************************************
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 # jdb -classpath /Users/alex/tmp/us/conf:/Users/alex/tmp/us/lib/*:/Users/alex/test/java/dubbo/2.5.4/dubbo-remoting/dubbo-remoting-api/src/main/java/ com.alibaba.dubbo.container.Main
 jdb -classpath /Users/alex/tmp/us/conf:/Users/alex/tmp/us/lib/* -sourcepath /Users/alex/test/java/dubbo/2.5.4/dubbo-remoting/dubbo-remoting-api/src/main/java/:/Users/alex/tmp/java-server/src/main/java com.alibaba.dubbo.container.Main
diff --git a/examples/general/dubbo/java-server/src/main/assembly/assembly.xml b/examples/general/dubbo/java-server/src/main/assembly/assembly.xml
index 2f01fea20f5391112cccb88c87bfe4ae1b59750a..98a2e100f18d195b8f0b44eb07080eaa9097af79 100644
--- a/examples/general/dubbo/java-server/src/main/assembly/assembly.xml
+++ b/examples/general/dubbo/java-server/src/main/assembly/assembly.xml
@@ -1,18 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
- - Copyright 1999-2011 Alibaba Group.
- -  
- - Licensed under the Apache License, Version 2.0 (the "License");
- - you may not use this file except in compliance with the License.
- - You may obtain a copy of the License at
- -  
- -      http://www.apache.org/licenses/LICENSE-2.0
- -  
- - Unless required by applicable law or agreed to in writing, software
- - distributed under the License is distributed on an "AS IS" BASIS,
- - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- - See the License for the specific language governing permissions and
- - limitations under the License.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
+
 <assembly>
 	<id>assembly</id>
 	<formats>
diff --git a/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/Gender.java b/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/Gender.java
index 72c30ae8d4bae8fc71b4cb598205141b2d1d2020..e606be79c9f633919132570b69e4d0a6588c9c8a 100644
--- a/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/Gender.java
+++ b/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/Gender.java
@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
 
 public enum  Gender {
diff --git a/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/Provider.java b/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/Provider.java
index 0031f5569fd5f16ded0da6e5426f78805fad4a42..dea1c342c2c31c51e27145e94e379b7be4106e29 100644
--- a/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/Provider.java
+++ b/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/Provider.java
@@ -14,6 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package com.ikurento.user;
 
 import org.springframework.context.support.ClassPathXmlApplicationContext;
diff --git a/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/Response.java b/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/Response.java
index 3447e5c2537625f424b54291c53783a51922ae7b..83b423dd084fe7626bc34b356ca8c6e5b540c539 100644
--- a/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/Response.java
+++ b/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/Response.java
@@ -1,7 +1,23 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
 
 import java.io.*;
-//import java.util.Objects;
 
 public final class Response<T> implements Serializable {
     private static final long serialVersionUID = 3727205004706510648L;
diff --git a/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/User.java b/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/User.java
index eafc0fe1c0e0c7b72a0fce73b6a333668797145e..a6e76cffe9c41c3b505550a5f3b15c202a13907c 100644
--- a/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/User.java
+++ b/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/User.java
@@ -1,5 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
-// ref: https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
 
 import java.util.Date;
 import java.io.Serializable;
diff --git a/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/UserProvider.java b/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/UserProvider.java
index 24567d23be662312a4750f07b605c685a8dfa5fe..60335876436ec77563b86c39066451e6cb04c71d 100644
--- a/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/UserProvider.java
+++ b/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/UserProvider.java
@@ -1,5 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
-// https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
 
 import java.util.List;
 import java.util.Map;
diff --git a/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/UserProviderAnotherImpl.java b/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/UserProviderAnotherImpl.java
index 04729fb7a33abe9738ccfdd48a7b2b19028587da..dfa46495d80d9312b0812800e5384d0bb71805e2 100644
--- a/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/UserProviderAnotherImpl.java
+++ b/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/UserProviderAnotherImpl.java
@@ -1,10 +1,24 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
-//ref: https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-// import org.apache.log4j.Logger;
-// import org.apache.log4j.LoggerFactory;
 
 import java.util.*;
 
diff --git a/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/UserProviderImpl.java b/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/UserProviderImpl.java
index 1efbf823740f5e3e4e82931a48bfc02ee9e78029..e2068f92350ae1cd2e4c75cd16aad5f2d9d52994 100644
--- a/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/UserProviderImpl.java
+++ b/examples/general/dubbo/java-server/src/main/java/com/ikurento/user/UserProviderImpl.java
@@ -1,6 +1,21 @@
-package com.ikurento.user;
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
-// ref: https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
+package com.ikurento.user;
 
 import java.util.HashMap;
 import java.util.List;
@@ -8,8 +23,6 @@ import java.util.ArrayList;
 import java.util.Map;
 import java.util.Iterator;
 
-// import org.apache.log4j.Logger;
-// import org.apache.log4j.LoggerFactory;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/examples/general/dubbo/java-server/src/main/resources/META-INF/spring/dubbo.provider.xml b/examples/general/dubbo/java-server/src/main/resources/META-INF/spring/dubbo.provider.xml
index f8dd13a833e6095485d0504e21cec272a3c9a288..4ebe64b937bfcccf0ee97c948c76329272a9cca5 100644
--- a/examples/general/dubbo/java-server/src/main/resources/META-INF/spring/dubbo.provider.xml
+++ b/examples/general/dubbo/java-server/src/main/resources/META-INF/spring/dubbo.provider.xml
@@ -1,19 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
- - Copyright 1999-2011 Alibaba Group.
- -
- - Licensed under the Apache License, Version 2.0 (the "License");
- - you may not use this file except in compliance with the License.
- - You may obtain a copy of the License at
- -
- -      http://www.apache.org/licenses/LICENSE-2.0
- -
- - Unless required by applicable law or agreed to in writing, software
- - distributed under the License is distributed on an "AS IS" BASIS,
- - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- - See the License for the specific language governing permissions and
- - limitations under the License.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
+
 <beans xmlns="http://www.springframework.org/schema/beans"
 	   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	   xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
diff --git a/examples/general/jsonrpc/go-client/app/client.go b/examples/general/jsonrpc/go-client/app/client.go
index 0d86275a8bfb46fdd0e3dfae91ea459d17012344..0248af70cc08aec6a327b2373234aabc1db5fca4 100644
--- a/examples/general/jsonrpc/go-client/app/client.go
+++ b/examples/general/jsonrpc/go-client/app/client.go
@@ -73,7 +73,7 @@ func initSignal() {
 		case syscall.SIGHUP:
 		// reload()
 		default:
-			go time.AfterFunc(time.Duration(survivalTimeout), func() {
+			time.AfterFunc(time.Duration(survivalTimeout), func() {
 				logger.Warnf("app exit now by force...")
 				os.Exit(1)
 			})
diff --git a/examples/general/jsonrpc/go-client/assembly/bin/load.sh b/examples/general/jsonrpc/go-client/assembly/bin/load.sh
index 07d5d15eac7b7974845e36c3807e7ec55875de65..ffa240b29d9e76761a151e7462092b86908de6f6 100644
--- a/examples/general/jsonrpc/go-client/assembly/bin/load.sh
+++ b/examples/general/jsonrpc/go-client/assembly/bin/load.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : dubbogo app devops script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-05-13 02:01
-# FILE    : load.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 APP_NAME="APPLICATION_NAME"
 APP_ARGS=""
diff --git a/examples/general/jsonrpc/go-client/assembly/common/app.properties b/examples/general/jsonrpc/go-client/assembly/common/app.properties
index 6bbd6db850ceeaf5ff873fee01a3578237cbd557..e10868f4d292765c7eeb2e8bb8b1684a44f56a14 100644
--- a/examples/general/jsonrpc/go-client/assembly/common/app.properties
+++ b/examples/general/jsonrpc/go-client/assembly/common/app.properties
@@ -1,13 +1,19 @@
-# dubbogo application configure script
-# ******************************************************
-# DESC    : dubbogo environment variable
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:29
-# FILE    : app.properties
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 export TARGET_EXEC_NAME="user_info_client"
 # BUILD_PACKAGE="dubbogo-examples/user-info/client/app"
diff --git a/examples/general/jsonrpc/go-client/assembly/common/build.sh b/examples/general/jsonrpc/go-client/assembly/common/build.sh
index 06b212db6c3dcc28e5e43666284662bcb7abcae4..583edd7d9967c8a9f384c2fbba730c0729df8cee 100644
--- a/examples/general/jsonrpc/go-client/assembly/common/build.sh
+++ b/examples/general/jsonrpc/go-client/assembly/common/build.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:28
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 rm -rf target/
 
diff --git a/examples/general/jsonrpc/go-client/assembly/linux/dev.sh b/examples/general/jsonrpc/go-client/assembly/linux/dev.sh
index 3373f01b948b708cd7bc1958c9d56a9042c60a68..eada737c8d0939d4237a6d218fc2a07efdbff381 100644
--- a/examples/general/jsonrpc/go-client/assembly/linux/dev.sh
+++ b/examples/general/jsonrpc/go-client/assembly/linux/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/jsonrpc/go-client/assembly/linux/release.sh b/examples/general/jsonrpc/go-client/assembly/linux/release.sh
index 34867b8b3488778cd76a1dc7802393dcab6b0df0..10eb3d73f8760d394537b90b7aeff83ca2b243ed 100644
--- a/examples/general/jsonrpc/go-client/assembly/linux/release.sh
+++ b/examples/general/jsonrpc/go-client/assembly/linux/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/jsonrpc/go-client/assembly/linux/test.sh b/examples/general/jsonrpc/go-client/assembly/linux/test.sh
index 1bbbefd1e14e08c16deaf859e2841f4d1fe88e9c..78b650c0d49483f9f6862532afa5c483b618475a 100644
--- a/examples/general/jsonrpc/go-client/assembly/linux/test.sh
+++ b/examples/general/jsonrpc/go-client/assembly/linux/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/jsonrpc/go-client/assembly/mac/dev.sh b/examples/general/jsonrpc/go-client/assembly/mac/dev.sh
index b68ac83b6524a6713cd90c4fc5968fe64b1a9545..c8284769909e62f0142c29e3a63177bf2826593f 100644
--- a/examples/general/jsonrpc/go-client/assembly/mac/dev.sh
+++ b/examples/general/jsonrpc/go-client/assembly/mac/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/jsonrpc/go-client/assembly/mac/release.sh b/examples/general/jsonrpc/go-client/assembly/mac/release.sh
index 688288b3b1b989e8af70a3674b34ea8e0668f3b4..91c2dfee79b1499b640420191174f980eac187bb 100644
--- a/examples/general/jsonrpc/go-client/assembly/mac/release.sh
+++ b/examples/general/jsonrpc/go-client/assembly/mac/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/jsonrpc/go-client/assembly/mac/test.sh b/examples/general/jsonrpc/go-client/assembly/mac/test.sh
index 56d6c11ecd6a1dc5984c74b88c10be9239e57428..a7853f5e2d51df8e3e9509621952c44bca0d1a2d 100644
--- a/examples/general/jsonrpc/go-client/assembly/mac/test.sh
+++ b/examples/general/jsonrpc/go-client/assembly/mac/test.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 
 set -e
diff --git a/examples/general/jsonrpc/go-client/assembly/windows/dev.sh b/examples/general/jsonrpc/go-client/assembly/windows/dev.sh
index 91cf6f23bcbecb26db798469a30529261aabbbb6..10a3866c0f4ed8e1070c4d5641259c04073df6cb 100644
--- a/examples/general/jsonrpc/go-client/assembly/windows/dev.sh
+++ b/examples/general/jsonrpc/go-client/assembly/windows/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/jsonrpc/go-client/assembly/windows/release.sh b/examples/general/jsonrpc/go-client/assembly/windows/release.sh
index f317720bd53d9c9e5f8f484b6eb682c9c736af0c..21af573fa3842d47959d5726b11b81d5fff5b8df 100644
--- a/examples/general/jsonrpc/go-client/assembly/windows/release.sh
+++ b/examples/general/jsonrpc/go-client/assembly/windows/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/jsonrpc/go-client/assembly/windows/test.sh b/examples/general/jsonrpc/go-client/assembly/windows/test.sh
index 7dd2bec5260e647b57a46aaa37acc098babff068..2104da8b5909957c165eedc2f7d6866a890e9e6d 100644
--- a/examples/general/jsonrpc/go-client/assembly/windows/test.sh
+++ b/examples/general/jsonrpc/go-client/assembly/windows/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/jsonrpc/go-server/app/server.go b/examples/general/jsonrpc/go-server/app/server.go
index e36b6efe9d115d8352f09f1f5011ea00d92f0d13..de4aaed0bd56a112633ff9c4aba1c79d21b49920 100644
--- a/examples/general/jsonrpc/go-server/app/server.go
+++ b/examples/general/jsonrpc/go-server/app/server.go
@@ -64,7 +64,7 @@ func initSignal() {
 		case syscall.SIGHUP:
 		// reload()
 		default:
-			go time.AfterFunc(time.Duration(survivalTimeout), func() {
+			time.AfterFunc(time.Duration(survivalTimeout), func() {
 				logger.Warnf("app exit now by force...")
 				os.Exit(1)
 			})
diff --git a/examples/general/jsonrpc/go-server/assembly/bin/load.sh b/examples/general/jsonrpc/go-server/assembly/bin/load.sh
index 47fc5e38ded155a43c30b8cbf4d2a5ae04b58d0c..90077c2471d7d5553ddea6402c7e2c06867cba8e 100644
--- a/examples/general/jsonrpc/go-server/assembly/bin/load.sh
+++ b/examples/general/jsonrpc/go-server/assembly/bin/load.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : dubbogo app devops script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-05-13 02:01
-# FILE    : load.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 APP_NAME="APPLICATION_NAME"
 APP_ARGS=""
diff --git a/examples/general/jsonrpc/go-server/assembly/common/app.properties b/examples/general/jsonrpc/go-server/assembly/common/app.properties
index dffb755b0811dd140d3f04e232f5f80ff60181df..1f0827eb512b9bcb3c2428f8e0b50d76f65743ef 100644
--- a/examples/general/jsonrpc/go-server/assembly/common/app.properties
+++ b/examples/general/jsonrpc/go-server/assembly/common/app.properties
@@ -1,13 +1,19 @@
-# dubbogo application configure script
-# ******************************************************
-# DESC    : application environment variable
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:29
-# FILE    : app.properties
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 TARGET_EXEC_NAME="user_info_server"
 # BUILD_PACKAGE="dubbogo-examples/user-info/server/app"
diff --git a/examples/general/jsonrpc/go-server/assembly/common/build.sh b/examples/general/jsonrpc/go-server/assembly/common/build.sh
index 15ac904f7c265d942d7018439719af7e7391aa41..89a95ce679ca711824a2de0888686be79d96f505 100644
--- a/examples/general/jsonrpc/go-server/assembly/common/build.sh
+++ b/examples/general/jsonrpc/go-server/assembly/common/build.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:28
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 rm -rf target/
 
diff --git a/examples/general/jsonrpc/go-server/assembly/linux/dev.sh b/examples/general/jsonrpc/go-server/assembly/linux/dev.sh
index 55886f09fb4873be84cfa46aae592f5f000120a4..d830ac98c2b9328791d00d5160d487b1a12b5fed 100644
--- a/examples/general/jsonrpc/go-server/assembly/linux/dev.sh
+++ b/examples/general/jsonrpc/go-server/assembly/linux/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2018-06-24 17:32
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/jsonrpc/go-server/assembly/linux/release.sh b/examples/general/jsonrpc/go-server/assembly/linux/release.sh
index 9772ad9614583917d62beba2db9fcaefea63e1ed..99303800b0fbcd7f8dfea668dcf395f126fb99f6 100644
--- a/examples/general/jsonrpc/go-server/assembly/linux/release.sh
+++ b/examples/general/jsonrpc/go-server/assembly/linux/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/jsonrpc/go-server/assembly/linux/test.sh b/examples/general/jsonrpc/go-server/assembly/linux/test.sh
index 2fc4a98862bee5ef11a23e1b74058627a899181d..87144bb973095acaf8c17b0ec3bf42f643d0b95f 100644
--- a/examples/general/jsonrpc/go-server/assembly/linux/test.sh
+++ b/examples/general/jsonrpc/go-server/assembly/linux/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/jsonrpc/go-server/assembly/mac/dev.sh b/examples/general/jsonrpc/go-server/assembly/mac/dev.sh
index 5dfa78490b895ce556c809ead32b6f517a5f1450..3a7659b2d57e0e2502950d76ec6c938abf2b7513 100644
--- a/examples/general/jsonrpc/go-server/assembly/mac/dev.sh
+++ b/examples/general/jsonrpc/go-server/assembly/mac/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2018-06-24 17:32
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/jsonrpc/go-server/assembly/mac/release.sh b/examples/general/jsonrpc/go-server/assembly/mac/release.sh
index 1ec21c7b511ccce9eddfac22a2374b57a7a697bf..1c4bce4bf825fe401823ec33025e004a476ccaaf 100644
--- a/examples/general/jsonrpc/go-server/assembly/mac/release.sh
+++ b/examples/general/jsonrpc/go-server/assembly/mac/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/jsonrpc/go-server/assembly/mac/test.sh b/examples/general/jsonrpc/go-server/assembly/mac/test.sh
index d34914c7dbed0e442b4accf51a3ecdf7c2984db8..69206e32fed343eb87c04190b509b16482125542 100644
--- a/examples/general/jsonrpc/go-server/assembly/mac/test.sh
+++ b/examples/general/jsonrpc/go-server/assembly/mac/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 set -e
 
diff --git a/examples/general/jsonrpc/go-server/assembly/windows/dev.sh b/examples/general/jsonrpc/go-server/assembly/windows/dev.sh
index 97fbb6f698e500ad08d971b13cc1ffd00cd97803..011fb41148f205bc329118a3c75e52854c0ecfd3 100644
--- a/examples/general/jsonrpc/go-server/assembly/windows/dev.sh
+++ b/examples/general/jsonrpc/go-server/assembly/windows/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2018-06-24 17:34
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/jsonrpc/go-server/assembly/windows/release.sh b/examples/general/jsonrpc/go-server/assembly/windows/release.sh
index 782cb10c7828eb277b5905f10f8dd6ad1c2d6bed..679a26a7dc77a9bc0ccbf119eac3caba252cadc9 100644
--- a/examples/general/jsonrpc/go-server/assembly/windows/release.sh
+++ b/examples/general/jsonrpc/go-server/assembly/windows/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/jsonrpc/go-server/assembly/windows/test.sh b/examples/general/jsonrpc/go-server/assembly/windows/test.sh
index 2037ddecf2545f1543d5d28be728fb0899722098..4a36de0f3a26b804601de703c62a8062bd0623f4 100644
--- a/examples/general/jsonrpc/go-server/assembly/windows/test.sh
+++ b/examples/general/jsonrpc/go-server/assembly/windows/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/general/jsonrpc/java-client/build.sh b/examples/general/jsonrpc/java-client/build.sh
index 1286b53ee6180d73ae325ca91228c7e0accfe0c5..c869acfb45794244767305c485ecabde1548e10c 100644
--- a/examples/general/jsonrpc/java-client/build.sh
+++ b/examples/general/jsonrpc/java-client/build.sh
@@ -1,8 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# EMAIL   : alexstocks@foxmail.com
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 # rm src/main/resources/META-INF/spring/dubbo.consumer.xml
 # cp src/main/resources/META-INF/spring/dubbo-protocol.consumer.xml src/main/resources/META-INF/spring/dubbo.consumer.xml
diff --git a/examples/general/jsonrpc/java-client/pom.xml b/examples/general/jsonrpc/java-client/pom.xml
index 79a8a7e11b3c00fa151aa2dc728320a874304bff..445b92450a440c3525676f1f945f4728f8f7c7db 100644
--- a/examples/general/jsonrpc/java-client/pom.xml
+++ b/examples/general/jsonrpc/java-client/pom.xml
@@ -1,18 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
- - Copyright 1999-2011 Alibaba Group.
- -
- - Licensed under the Apache License, Version 2.0 (the "License");
- - you may not use this file except in compliance with the License.
- - You may obtain a copy of the License at
- -
- -      http://www.apache.org/licenses/LICENSE-2.0
- -
- - Unless required by applicable law or agreed to in writing, software
- - distributed under the License is distributed on an "AS IS" BASIS,
- - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- - See the License for the specific language governing permissions and
- - limitations under the License.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
+
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
 		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
diff --git a/examples/general/jsonrpc/java-client/src/main/assembly/assembly.xml b/examples/general/jsonrpc/java-client/src/main/assembly/assembly.xml
index 25235d9064e299dc9a6ff976b08b7e63aedca5d3..47757d1c93d8375c0cfe15a74be3dad09317f8da 100644
--- a/examples/general/jsonrpc/java-client/src/main/assembly/assembly.xml
+++ b/examples/general/jsonrpc/java-client/src/main/assembly/assembly.xml
@@ -1,18 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
- - Copyright 1999-2011 Alibaba Group.
- -  
- - Licensed under the Apache License, Version 2.0 (the "License");
- - you may not use this file except in compliance with the License.
- - You may obtain a copy of the License at
- -  
- -      http://www.apache.org/licenses/LICENSE-2.0
- -  
- - Unless required by applicable law or agreed to in writing, software
- - distributed under the License is distributed on an "AS IS" BASIS,
- - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- - See the License for the specific language governing permissions and
- - limitations under the License.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
+
 <assembly>
 	<id>assembly</id>
 	<formats>
diff --git a/examples/general/jsonrpc/java-client/src/main/java/com/ikurento/user/Consumer.java b/examples/general/jsonrpc/java-client/src/main/java/com/ikurento/user/Consumer.java
index 1a38dbfba906a951fcf8bd481650608bd5d35c9f..cca9559cd8c3501d8d23132eaa682ecbe3e7be29 100644
--- a/examples/general/jsonrpc/java-client/src/main/java/com/ikurento/user/Consumer.java
+++ b/examples/general/jsonrpc/java-client/src/main/java/com/ikurento/user/Consumer.java
@@ -1,12 +1,19 @@
-// *****************************************************
-// DESC    : dubbo consumer
-// AUTHOR  : writtey by 鍖呭杈�(https://github.com/baozh)
-// VERSION : 1.0
-// LICENCE : Apache License 2.0
-// EMAIL   : alexstocks@foxmail.com
-// MOD     : 2016-10-19 17:03
-// FILE    : Consumer.java
-// ******************************************************
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
 package com.ikurento.user;
 
diff --git a/examples/general/jsonrpc/java-client/src/main/java/com/ikurento/user/Gender.java b/examples/general/jsonrpc/java-client/src/main/java/com/ikurento/user/Gender.java
index 7bcfae3b23bf6ee2cca52cef7dc37e1c880d76a0..e606be79c9f633919132570b69e4d0a6588c9c8a 100644
--- a/examples/general/jsonrpc/java-client/src/main/java/com/ikurento/user/Gender.java
+++ b/examples/general/jsonrpc/java-client/src/main/java/com/ikurento/user/Gender.java
@@ -1,10 +1,22 @@
-package com.ikurento.user;
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
-// https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
+package com.ikurento.user;
 
-/**
- * Created by wuwen on 15/4/7.
- */
 public enum  Gender {
     MAN,
     WOMAN
diff --git a/examples/general/jsonrpc/java-client/src/main/java/com/ikurento/user/User.java b/examples/general/jsonrpc/java-client/src/main/java/com/ikurento/user/User.java
index 6966210df13a5d9bf4a6f7de262d3a72470950f0..7f228b3a657af4b6d9cd78b5f61fda021a6f633e 100644
--- a/examples/general/jsonrpc/java-client/src/main/java/com/ikurento/user/User.java
+++ b/examples/general/jsonrpc/java-client/src/main/java/com/ikurento/user/User.java
@@ -1,11 +1,24 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
-// https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
 
 import java.util.Date;
 
-/**
- * Created by wuwen on 15/4/7.
- */
 public class User {
 
     private String id;
diff --git a/examples/general/jsonrpc/java-client/src/main/java/com/ikurento/user/UserProvider.java b/examples/general/jsonrpc/java-client/src/main/java/com/ikurento/user/UserProvider.java
index 93e7aadf02a869163f41a8f3dda84d2ebf18a475..55185778e9e3af6ebcad21570b6e70916690d18f 100644
--- a/examples/general/jsonrpc/java-client/src/main/java/com/ikurento/user/UserProvider.java
+++ b/examples/general/jsonrpc/java-client/src/main/java/com/ikurento/user/UserProvider.java
@@ -1,6 +1,4 @@
 /*
- * Copyright 1999-2011 Alibaba Group.
- *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -13,8 +11,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package com.ikurento.user;
-// https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
 
 import java.util.List;
 
diff --git a/examples/general/jsonrpc/java-client/src/main/resources/META-INF/spring/dubbo.consumer.xml b/examples/general/jsonrpc/java-client/src/main/resources/META-INF/spring/dubbo.consumer.xml
index da21e8a359c003983ebea3269d4f2dfd255e3b29..ea4fcc4f56298f85e54b4445c0edd9a1818c4b78 100644
--- a/examples/general/jsonrpc/java-client/src/main/resources/META-INF/spring/dubbo.consumer.xml
+++ b/examples/general/jsonrpc/java-client/src/main/resources/META-INF/spring/dubbo.consumer.xml
@@ -1,19 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
- - Copyright 1999-2011 Alibaba Group.
- -
- - Licensed under the Apache License, Version 2.0 (the "License");
- - you may not use this file except in compliance with the License.
- - You may obtain a copy of the License at
- -
- -      http://www.apache.org/licenses/LICENSE-2.0
- -
- - Unless required by applicable law or agreed to in writing, software
- - distributed under the License is distributed on an "AS IS" BASIS,
- - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- - See the License for the specific language governing permissions and
- - limitations under the License.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
+
 <beans xmlns="http://www.springframework.org/schema/beans"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
diff --git a/examples/general/jsonrpc/java-client/src/main/resources/META-INF/spring/service.xml b/examples/general/jsonrpc/java-client/src/main/resources/META-INF/spring/service.xml
index db9fc3cba5a359b8835af53b81e50f8296d2e489..854d5135a5065f58ec1fdf32c215ca516bd4aee9 100644
--- a/examples/general/jsonrpc/java-client/src/main/resources/META-INF/spring/service.xml
+++ b/examples/general/jsonrpc/java-client/src/main/resources/META-INF/spring/service.xml
@@ -1,18 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
- - Copyright 1999-2011 Alibaba Group.
- -  
- - Licensed under the Apache License, Version 2.0 (the "License");
- - you may not use this file except in compliance with the License.
- - You may obtain a copy of the License at
- -  
- -      http://www.apache.org/licenses/LICENSE-2.0
- -  
- - Unless required by applicable law or agreed to in writing, software
- - distributed under the License is distributed on an "AS IS" BASIS,
- - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- - See the License for the specific language governing permissions and
- - limitations under the License.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
 <beans xmlns="http://www.springframework.org/schema/beans"
 	xmlns:context="http://www.springframework.org/schema/context"
diff --git a/examples/general/jsonrpc/java-server/build.sh b/examples/general/jsonrpc/java-server/build.sh
index 0c197da639c1c1d9375e18c24dd73366c49deefe..7b5755be183f5b301f0963fcc4a4eace8a341574 100644
--- a/examples/general/jsonrpc/java-server/build.sh
+++ b/examples/general/jsonrpc/java-server/build.sh
@@ -1,8 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# EMAIL   : alexstocks@foxmail.com
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 # mvn dependency:sources
 mvn clean package -Dmaven.test.skip
diff --git a/examples/general/jsonrpc/java-server/pom.xml b/examples/general/jsonrpc/java-server/pom.xml
index 975157865e59f24693d755dd20b0aac4b179a793..9b811e9f78a3db3cb742ce5870b5d68b55bd681c 100644
--- a/examples/general/jsonrpc/java-server/pom.xml
+++ b/examples/general/jsonrpc/java-server/pom.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/examples/general/jsonrpc/java-server/script/debug.sh b/examples/general/jsonrpc/java-server/script/debug.sh
index 27c5d800d846018127e762944151aa8e9ad4495d..1038cd7ff7f65a2a07ce21414732ab891aef67ff 100644
--- a/examples/general/jsonrpc/java-server/script/debug.sh
+++ b/examples/general/jsonrpc/java-server/script/debug.sh
@@ -1,13 +1,19 @@
-#!/us1r/bin/env bash
-# ******************************************************
-# DESC    :
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-09 21:52
-# FILE    : to debug user info dubbo server
-# ******************************************************
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 # jdb -classpath /Users/alex/tmp/us/conf:/Users/alex/tmp/us/lib/*:/Users/alex/test/java/dubbo/2.5.4/dubbo-remoting/dubbo-remoting-api/src/main/java/ com.alibaba.dubbo.container.Main
 jdb -classpath /Users/alex/tmp/us/conf:/Users/alex/tmp/us/lib/* -sourcepath /Users/alex/test/java/dubbo/2.5.4/dubbo-remoting/dubbo-remoting-api/src/main/java/:/Users/alex/tmp/java-server/src/main/java com.alibaba.dubbo.container.Main
diff --git a/examples/general/jsonrpc/java-server/src/main/assembly/assembly.xml b/examples/general/jsonrpc/java-server/src/main/assembly/assembly.xml
index 2f01fea20f5391112cccb88c87bfe4ae1b59750a..98a2e100f18d195b8f0b44eb07080eaa9097af79 100644
--- a/examples/general/jsonrpc/java-server/src/main/assembly/assembly.xml
+++ b/examples/general/jsonrpc/java-server/src/main/assembly/assembly.xml
@@ -1,18 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
- - Copyright 1999-2011 Alibaba Group.
- -  
- - Licensed under the Apache License, Version 2.0 (the "License");
- - you may not use this file except in compliance with the License.
- - You may obtain a copy of the License at
- -  
- -      http://www.apache.org/licenses/LICENSE-2.0
- -  
- - Unless required by applicable law or agreed to in writing, software
- - distributed under the License is distributed on an "AS IS" BASIS,
- - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- - See the License for the specific language governing permissions and
- - limitations under the License.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
+
 <assembly>
 	<id>assembly</id>
 	<formats>
diff --git a/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/Gender.java b/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/Gender.java
index 72c30ae8d4bae8fc71b4cb598205141b2d1d2020..e606be79c9f633919132570b69e4d0a6588c9c8a 100644
--- a/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/Gender.java
+++ b/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/Gender.java
@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
 
 public enum  Gender {
diff --git a/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/Provider.java b/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/Provider.java
index 0031f5569fd5f16ded0da6e5426f78805fad4a42..dea1c342c2c31c51e27145e94e379b7be4106e29 100644
--- a/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/Provider.java
+++ b/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/Provider.java
@@ -14,6 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package com.ikurento.user;
 
 import org.springframework.context.support.ClassPathXmlApplicationContext;
diff --git a/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/Response.java b/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/Response.java
index 3447e5c2537625f424b54291c53783a51922ae7b..83b423dd084fe7626bc34b356ca8c6e5b540c539 100644
--- a/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/Response.java
+++ b/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/Response.java
@@ -1,7 +1,23 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
 
 import java.io.*;
-//import java.util.Objects;
 
 public final class Response<T> implements Serializable {
     private static final long serialVersionUID = 3727205004706510648L;
diff --git a/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/User.java b/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/User.java
index eafc0fe1c0e0c7b72a0fce73b6a333668797145e..a6e76cffe9c41c3b505550a5f3b15c202a13907c 100644
--- a/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/User.java
+++ b/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/User.java
@@ -1,5 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
-// ref: https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
 
 import java.util.Date;
 import java.io.Serializable;
diff --git a/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/UserProvider.java b/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/UserProvider.java
index a74b2222018988e13b29f5d3b74cee00815ec40e..2958a1adeec491147c69667868642df2334b9abe 100644
--- a/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/UserProvider.java
+++ b/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/UserProvider.java
@@ -1,5 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
-// https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
 
 import java.util.List;
 import java.util.Map;
diff --git a/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/UserProviderAnotherImpl.java b/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/UserProviderAnotherImpl.java
index 9e22b78b3de2412c8aefbfdbb37d2886d016a0f4..299feb7bed37d3b2a62a548e04480a4d3d4c1647 100644
--- a/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/UserProviderAnotherImpl.java
+++ b/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/UserProviderAnotherImpl.java
@@ -1,10 +1,24 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
-//ref: https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-// import org.apache.log4j.Logger;
-// import org.apache.log4j.LoggerFactory;
 
 import java.util.*;
 
diff --git a/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/UserProviderImpl.java b/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/UserProviderImpl.java
index 1ff8afa62220463932872df2172b35e4e16a4591..ac6c229bb47c76f8a1d2a53672295a8cc3f4919b 100644
--- a/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/UserProviderImpl.java
+++ b/examples/general/jsonrpc/java-server/src/main/java/com/ikurento/user/UserProviderImpl.java
@@ -1,6 +1,21 @@
-package com.ikurento.user;
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
-// ref: https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
+package com.ikurento.user;
 
 import java.util.HashMap;
 import java.util.List;
diff --git a/examples/general/jsonrpc/java-server/src/main/resources/META-INF/spring/dubbo.provider.xml b/examples/general/jsonrpc/java-server/src/main/resources/META-INF/spring/dubbo.provider.xml
index 6eb03bc94bbf34b23b6df890b7c70568466ffad8..f9ebc0805150ecb2e904782462697c4a86ed8a26 100644
--- a/examples/general/jsonrpc/java-server/src/main/resources/META-INF/spring/dubbo.provider.xml
+++ b/examples/general/jsonrpc/java-server/src/main/resources/META-INF/spring/dubbo.provider.xml
@@ -1,19 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
- - Copyright 1999-2011 Alibaba Group.
- -
- - Licensed under the Apache License, Version 2.0 (the "License");
- - you may not use this file except in compliance with the License.
- - You may obtain a copy of the License at
- -
- -      http://www.apache.org/licenses/LICENSE-2.0
- -
- - Unless required by applicable law or agreed to in writing, software
- - distributed under the License is distributed on an "AS IS" BASIS,
- - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- - See the License for the specific language governing permissions and
- - limitations under the License.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
+
 <beans xmlns="http://www.springframework.org/schema/beans"
 	   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	   xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
diff --git a/examples/generic/go-client/assembly/bin/load.sh b/examples/generic/go-client/assembly/bin/load.sh
index 07d5d15eac7b7974845e36c3807e7ec55875de65..176a202ab8810701ac8208db0ab764f2e215d71d 100644
--- a/examples/generic/go-client/assembly/bin/load.sh
+++ b/examples/generic/go-client/assembly/bin/load.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : dubbogo app devops script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-05-13 02:01
-# FILE    : load.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 APP_NAME="APPLICATION_NAME"
 APP_ARGS=""
diff --git a/examples/generic/go-client/assembly/common/app.properties b/examples/generic/go-client/assembly/common/app.properties
index 6bbd6db850ceeaf5ff873fee01a3578237cbd557..97eee47429e978927a03c3fb2876b3d40bfa4269 100644
--- a/examples/generic/go-client/assembly/common/app.properties
+++ b/examples/generic/go-client/assembly/common/app.properties
@@ -1,13 +1,20 @@
-# dubbogo application configure script
-# ******************************************************
-# DESC    : dubbogo environment variable
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:29
-# FILE    : app.properties
-# ******************************************************
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 export TARGET_EXEC_NAME="user_info_client"
 # BUILD_PACKAGE="dubbogo-examples/user-info/client/app"
diff --git a/examples/generic/go-client/assembly/common/build.sh b/examples/generic/go-client/assembly/common/build.sh
index e72418297ad2f0ac6985476b5a8d5e03b9e7584e..0f0b22f5f42a01fffa48efa4cae5d953fb44d7ed 100644
--- a/examples/generic/go-client/assembly/common/build.sh
+++ b/examples/generic/go-client/assembly/common/build.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:28
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 rm -rf target/
 
diff --git a/examples/generic/go-client/assembly/linux/dev.sh b/examples/generic/go-client/assembly/linux/dev.sh
index 3373f01b948b708cd7bc1958c9d56a9042c60a68..4f659a7c383853b45b7d80d516c10e0c51e6cede 100644
--- a/examples/generic/go-client/assembly/linux/dev.sh
+++ b/examples/generic/go-client/assembly/linux/dev.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 
 set -e
diff --git a/examples/generic/go-client/assembly/linux/release.sh b/examples/generic/go-client/assembly/linux/release.sh
index 34867b8b3488778cd76a1dc7802393dcab6b0df0..10eb3d73f8760d394537b90b7aeff83ca2b243ed 100644
--- a/examples/generic/go-client/assembly/linux/release.sh
+++ b/examples/generic/go-client/assembly/linux/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/generic/go-client/assembly/linux/test.sh b/examples/generic/go-client/assembly/linux/test.sh
index 1bbbefd1e14e08c16deaf859e2841f4d1fe88e9c..78b650c0d49483f9f6862532afa5c483b618475a 100644
--- a/examples/generic/go-client/assembly/linux/test.sh
+++ b/examples/generic/go-client/assembly/linux/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/generic/go-client/assembly/mac/dev.sh b/examples/generic/go-client/assembly/mac/dev.sh
index b68ac83b6524a6713cd90c4fc5968fe64b1a9545..0d21ec4aab54676837e0a909467cbf56f6bfc275 100644
--- a/examples/generic/go-client/assembly/mac/dev.sh
+++ b/examples/generic/go-client/assembly/mac/dev.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 
 set -e
diff --git a/examples/generic/go-client/assembly/mac/release.sh b/examples/generic/go-client/assembly/mac/release.sh
index 688288b3b1b989e8af70a3674b34ea8e0668f3b4..91c2dfee79b1499b640420191174f980eac187bb 100644
--- a/examples/generic/go-client/assembly/mac/release.sh
+++ b/examples/generic/go-client/assembly/mac/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/generic/go-client/assembly/mac/test.sh b/examples/generic/go-client/assembly/mac/test.sh
index 56d6c11ecd6a1dc5984c74b88c10be9239e57428..2fac89d0f6b9feb95b79359b38078135f15d90e3 100644
--- a/examples/generic/go-client/assembly/mac/test.sh
+++ b/examples/generic/go-client/assembly/mac/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/generic/go-client/assembly/windows/dev.sh b/examples/generic/go-client/assembly/windows/dev.sh
index 91cf6f23bcbecb26db798469a30529261aabbbb6..10a3866c0f4ed8e1070c4d5641259c04073df6cb 100644
--- a/examples/generic/go-client/assembly/windows/dev.sh
+++ b/examples/generic/go-client/assembly/windows/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/generic/go-client/assembly/windows/release.sh b/examples/generic/go-client/assembly/windows/release.sh
index f317720bd53d9c9e5f8f484b6eb682c9c736af0c..21af573fa3842d47959d5726b11b81d5fff5b8df 100644
--- a/examples/generic/go-client/assembly/windows/release.sh
+++ b/examples/generic/go-client/assembly/windows/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/generic/go-client/assembly/windows/test.sh b/examples/generic/go-client/assembly/windows/test.sh
index 7dd2bec5260e647b57a46aaa37acc098babff068..2104da8b5909957c165eedc2f7d6866a890e9e6d 100644
--- a/examples/generic/go-client/assembly/windows/test.sh
+++ b/examples/generic/go-client/assembly/windows/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/generic/java-server/build.sh b/examples/generic/java-server/build.sh
index 0c197da639c1c1d9375e18c24dd73366c49deefe..7b5755be183f5b301f0963fcc4a4eace8a341574 100644
--- a/examples/generic/java-server/build.sh
+++ b/examples/generic/java-server/build.sh
@@ -1,8 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# EMAIL   : alexstocks@foxmail.com
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 # mvn dependency:sources
 mvn clean package -Dmaven.test.skip
diff --git a/examples/generic/java-server/pom.xml b/examples/generic/java-server/pom.xml
index 975157865e59f24693d755dd20b0aac4b179a793..9b811e9f78a3db3cb742ce5870b5d68b55bd681c 100644
--- a/examples/generic/java-server/pom.xml
+++ b/examples/generic/java-server/pom.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/examples/generic/java-server/script/debug.sh b/examples/generic/java-server/script/debug.sh
index 27c5d800d846018127e762944151aa8e9ad4495d..1038cd7ff7f65a2a07ce21414732ab891aef67ff 100644
--- a/examples/generic/java-server/script/debug.sh
+++ b/examples/generic/java-server/script/debug.sh
@@ -1,13 +1,19 @@
-#!/us1r/bin/env bash
-# ******************************************************
-# DESC    :
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-09 21:52
-# FILE    : to debug user info dubbo server
-# ******************************************************
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 # jdb -classpath /Users/alex/tmp/us/conf:/Users/alex/tmp/us/lib/*:/Users/alex/test/java/dubbo/2.5.4/dubbo-remoting/dubbo-remoting-api/src/main/java/ com.alibaba.dubbo.container.Main
 jdb -classpath /Users/alex/tmp/us/conf:/Users/alex/tmp/us/lib/* -sourcepath /Users/alex/test/java/dubbo/2.5.4/dubbo-remoting/dubbo-remoting-api/src/main/java/:/Users/alex/tmp/java-server/src/main/java com.alibaba.dubbo.container.Main
diff --git a/examples/generic/java-server/src/main/assembly/assembly.xml b/examples/generic/java-server/src/main/assembly/assembly.xml
index 2f01fea20f5391112cccb88c87bfe4ae1b59750a..98a2e100f18d195b8f0b44eb07080eaa9097af79 100644
--- a/examples/generic/java-server/src/main/assembly/assembly.xml
+++ b/examples/generic/java-server/src/main/assembly/assembly.xml
@@ -1,18 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
- - Copyright 1999-2011 Alibaba Group.
- -  
- - Licensed under the Apache License, Version 2.0 (the "License");
- - you may not use this file except in compliance with the License.
- - You may obtain a copy of the License at
- -  
- -      http://www.apache.org/licenses/LICENSE-2.0
- -  
- - Unless required by applicable law or agreed to in writing, software
- - distributed under the License is distributed on an "AS IS" BASIS,
- - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- - See the License for the specific language governing permissions and
- - limitations under the License.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
+
 <assembly>
 	<id>assembly</id>
 	<formats>
diff --git a/examples/generic/java-server/src/main/java/com/ikurento/user/Gender.java b/examples/generic/java-server/src/main/java/com/ikurento/user/Gender.java
index 72c30ae8d4bae8fc71b4cb598205141b2d1d2020..e606be79c9f633919132570b69e4d0a6588c9c8a 100644
--- a/examples/generic/java-server/src/main/java/com/ikurento/user/Gender.java
+++ b/examples/generic/java-server/src/main/java/com/ikurento/user/Gender.java
@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
 
 public enum  Gender {
diff --git a/examples/generic/java-server/src/main/java/com/ikurento/user/Response.java b/examples/generic/java-server/src/main/java/com/ikurento/user/Response.java
index 3447e5c2537625f424b54291c53783a51922ae7b..83b423dd084fe7626bc34b356ca8c6e5b540c539 100644
--- a/examples/generic/java-server/src/main/java/com/ikurento/user/Response.java
+++ b/examples/generic/java-server/src/main/java/com/ikurento/user/Response.java
@@ -1,7 +1,23 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
 
 import java.io.*;
-//import java.util.Objects;
 
 public final class Response<T> implements Serializable {
     private static final long serialVersionUID = 3727205004706510648L;
diff --git a/examples/generic/java-server/src/main/java/com/ikurento/user/User.java b/examples/generic/java-server/src/main/java/com/ikurento/user/User.java
index eafc0fe1c0e0c7b72a0fce73b6a333668797145e..a6e76cffe9c41c3b505550a5f3b15c202a13907c 100644
--- a/examples/generic/java-server/src/main/java/com/ikurento/user/User.java
+++ b/examples/generic/java-server/src/main/java/com/ikurento/user/User.java
@@ -1,5 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
-// ref: https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
 
 import java.util.Date;
 import java.io.Serializable;
diff --git a/examples/generic/java-server/src/main/java/com/ikurento/user/UserProvider.java b/examples/generic/java-server/src/main/java/com/ikurento/user/UserProvider.java
index 24567d23be662312a4750f07b605c685a8dfa5fe..60335876436ec77563b86c39066451e6cb04c71d 100644
--- a/examples/generic/java-server/src/main/java/com/ikurento/user/UserProvider.java
+++ b/examples/generic/java-server/src/main/java/com/ikurento/user/UserProvider.java
@@ -1,5 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
-// https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
 
 import java.util.List;
 import java.util.Map;
diff --git a/examples/generic/java-server/src/main/java/com/ikurento/user/UserProviderAnotherImpl.java b/examples/generic/java-server/src/main/java/com/ikurento/user/UserProviderAnotherImpl.java
index d600545c5084a40f1318e47a6a1c20bfcd6d36bc..05611fc9a8de061543982261697a25f4cac0d98f 100644
--- a/examples/generic/java-server/src/main/java/com/ikurento/user/UserProviderAnotherImpl.java
+++ b/examples/generic/java-server/src/main/java/com/ikurento/user/UserProviderAnotherImpl.java
@@ -1,5 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
-//ref: https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
diff --git a/examples/generic/java-server/src/main/java/com/ikurento/user/UserProviderImpl.java b/examples/generic/java-server/src/main/java/com/ikurento/user/UserProviderImpl.java
index 47a4e2d9732aa8d8d9279d47af5bb4fb3db37195..1984d169aac651e2d8534e789810d4c910e48152 100644
--- a/examples/generic/java-server/src/main/java/com/ikurento/user/UserProviderImpl.java
+++ b/examples/generic/java-server/src/main/java/com/ikurento/user/UserProviderImpl.java
@@ -1,6 +1,21 @@
-package com.ikurento.user;
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
-// ref: https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
+package com.ikurento.user;
 
 import java.util.HashMap;
 import java.util.List;
diff --git a/examples/generic/java-server/src/main/resources/META-INF/spring/dubbo.provider.xml b/examples/generic/java-server/src/main/resources/META-INF/spring/dubbo.provider.xml
index f8dd13a833e6095485d0504e21cec272a3c9a288..4ebe64b937bfcccf0ee97c948c76329272a9cca5 100644
--- a/examples/generic/java-server/src/main/resources/META-INF/spring/dubbo.provider.xml
+++ b/examples/generic/java-server/src/main/resources/META-INF/spring/dubbo.provider.xml
@@ -1,19 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
- - Copyright 1999-2011 Alibaba Group.
- -
- - Licensed under the Apache License, Version 2.0 (the "License");
- - you may not use this file except in compliance with the License.
- - You may obtain a copy of the License at
- -
- -      http://www.apache.org/licenses/LICENSE-2.0
- -
- - Unless required by applicable law or agreed to in writing, software
- - distributed under the License is distributed on an "AS IS" BASIS,
- - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- - See the License for the specific language governing permissions and
- - limitations under the License.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
+
 <beans xmlns="http://www.springframework.org/schema/beans"
 	   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	   xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
diff --git a/examples/helloworld/dubbo/go-client/assembly/bin/load.sh b/examples/helloworld/dubbo/go-client/assembly/bin/load.sh
index 07d5d15eac7b7974845e36c3807e7ec55875de65..176a202ab8810701ac8208db0ab764f2e215d71d 100644
--- a/examples/helloworld/dubbo/go-client/assembly/bin/load.sh
+++ b/examples/helloworld/dubbo/go-client/assembly/bin/load.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : dubbogo app devops script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-05-13 02:01
-# FILE    : load.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 APP_NAME="APPLICATION_NAME"
 APP_ARGS=""
diff --git a/examples/helloworld/dubbo/go-client/assembly/common/app.properties b/examples/helloworld/dubbo/go-client/assembly/common/app.properties
index 6bbd6db850ceeaf5ff873fee01a3578237cbd557..97eee47429e978927a03c3fb2876b3d40bfa4269 100644
--- a/examples/helloworld/dubbo/go-client/assembly/common/app.properties
+++ b/examples/helloworld/dubbo/go-client/assembly/common/app.properties
@@ -1,13 +1,20 @@
-# dubbogo application configure script
-# ******************************************************
-# DESC    : dubbogo environment variable
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:29
-# FILE    : app.properties
-# ******************************************************
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 export TARGET_EXEC_NAME="user_info_client"
 # BUILD_PACKAGE="dubbogo-examples/user-info/client/app"
diff --git a/examples/helloworld/dubbo/go-client/assembly/common/build.sh b/examples/helloworld/dubbo/go-client/assembly/common/build.sh
index e72418297ad2f0ac6985476b5a8d5e03b9e7584e..0f0b22f5f42a01fffa48efa4cae5d953fb44d7ed 100644
--- a/examples/helloworld/dubbo/go-client/assembly/common/build.sh
+++ b/examples/helloworld/dubbo/go-client/assembly/common/build.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:28
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 rm -rf target/
 
diff --git a/examples/helloworld/dubbo/go-client/assembly/linux/dev.sh b/examples/helloworld/dubbo/go-client/assembly/linux/dev.sh
index 3373f01b948b708cd7bc1958c9d56a9042c60a68..eada737c8d0939d4237a6d218fc2a07efdbff381 100644
--- a/examples/helloworld/dubbo/go-client/assembly/linux/dev.sh
+++ b/examples/helloworld/dubbo/go-client/assembly/linux/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/helloworld/dubbo/go-client/assembly/linux/release.sh b/examples/helloworld/dubbo/go-client/assembly/linux/release.sh
index 34867b8b3488778cd76a1dc7802393dcab6b0df0..13b19f48a8ccb448041feb636fa6b3cc4c9997a7 100644
--- a/examples/helloworld/dubbo/go-client/assembly/linux/release.sh
+++ b/examples/helloworld/dubbo/go-client/assembly/linux/release.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 
 set -e
diff --git a/examples/helloworld/dubbo/go-client/assembly/linux/test.sh b/examples/helloworld/dubbo/go-client/assembly/linux/test.sh
index 1bbbefd1e14e08c16deaf859e2841f4d1fe88e9c..c6c31b3b7985d3b91fdeab39c2cd9954968fb227 100644
--- a/examples/helloworld/dubbo/go-client/assembly/linux/test.sh
+++ b/examples/helloworld/dubbo/go-client/assembly/linux/test.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 
 set -e
diff --git a/examples/helloworld/dubbo/go-client/assembly/mac/dev.sh b/examples/helloworld/dubbo/go-client/assembly/mac/dev.sh
index b68ac83b6524a6713cd90c4fc5968fe64b1a9545..c8284769909e62f0142c29e3a63177bf2826593f 100644
--- a/examples/helloworld/dubbo/go-client/assembly/mac/dev.sh
+++ b/examples/helloworld/dubbo/go-client/assembly/mac/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/helloworld/dubbo/go-client/assembly/mac/release.sh b/examples/helloworld/dubbo/go-client/assembly/mac/release.sh
index 688288b3b1b989e8af70a3674b34ea8e0668f3b4..91c2dfee79b1499b640420191174f980eac187bb 100644
--- a/examples/helloworld/dubbo/go-client/assembly/mac/release.sh
+++ b/examples/helloworld/dubbo/go-client/assembly/mac/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/helloworld/dubbo/go-client/assembly/mac/test.sh b/examples/helloworld/dubbo/go-client/assembly/mac/test.sh
index 56d6c11ecd6a1dc5984c74b88c10be9239e57428..a7853f5e2d51df8e3e9509621952c44bca0d1a2d 100644
--- a/examples/helloworld/dubbo/go-client/assembly/mac/test.sh
+++ b/examples/helloworld/dubbo/go-client/assembly/mac/test.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 
 set -e
diff --git a/examples/helloworld/dubbo/go-client/assembly/windows/dev.sh b/examples/helloworld/dubbo/go-client/assembly/windows/dev.sh
index 91cf6f23bcbecb26db798469a30529261aabbbb6..10a3866c0f4ed8e1070c4d5641259c04073df6cb 100644
--- a/examples/helloworld/dubbo/go-client/assembly/windows/dev.sh
+++ b/examples/helloworld/dubbo/go-client/assembly/windows/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-18 13:24
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/helloworld/dubbo/go-client/assembly/windows/release.sh b/examples/helloworld/dubbo/go-client/assembly/windows/release.sh
index f317720bd53d9c9e5f8f484b6eb682c9c736af0c..21af573fa3842d47959d5726b11b81d5fff5b8df 100644
--- a/examples/helloworld/dubbo/go-client/assembly/windows/release.sh
+++ b/examples/helloworld/dubbo/go-client/assembly/windows/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/helloworld/dubbo/go-client/assembly/windows/test.sh b/examples/helloworld/dubbo/go-client/assembly/windows/test.sh
index 7dd2bec5260e647b57a46aaa37acc098babff068..2104da8b5909957c165eedc2f7d6866a890e9e6d 100644
--- a/examples/helloworld/dubbo/go-client/assembly/windows/test.sh
+++ b/examples/helloworld/dubbo/go-client/assembly/windows/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/helloworld/dubbo/go-server/app/server.go b/examples/helloworld/dubbo/go-server/app/server.go
index f02a6ba05e8723410c985823caafe88192f5af7e..dc3a40f14f43e8dce616b3cd79a5a6b6fde38580 100644
--- a/examples/helloworld/dubbo/go-server/app/server.go
+++ b/examples/helloworld/dubbo/go-server/app/server.go
@@ -64,7 +64,7 @@ func initSignal() {
 		case syscall.SIGHUP:
 			// reload()
 		default:
-			go time.AfterFunc(time.Duration(survivalTimeout), func() {
+			time.AfterFunc(time.Duration(survivalTimeout), func() {
 				logger.Warnf("app exit now by force...")
 				os.Exit(1)
 			})
diff --git a/examples/helloworld/dubbo/go-server/assembly/bin/load.sh b/examples/helloworld/dubbo/go-server/assembly/bin/load.sh
index 47fc5e38ded155a43c30b8cbf4d2a5ae04b58d0c..2e127ac652ec2b418d74efa1abfd159250cb44d1 100644
--- a/examples/helloworld/dubbo/go-server/assembly/bin/load.sh
+++ b/examples/helloworld/dubbo/go-server/assembly/bin/load.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : dubbogo app devops script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-05-13 02:01
-# FILE    : load.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 APP_NAME="APPLICATION_NAME"
 APP_ARGS=""
diff --git a/examples/helloworld/dubbo/go-server/assembly/common/app.properties b/examples/helloworld/dubbo/go-server/assembly/common/app.properties
index dffb755b0811dd140d3f04e232f5f80ff60181df..1f0827eb512b9bcb3c2428f8e0b50d76f65743ef 100644
--- a/examples/helloworld/dubbo/go-server/assembly/common/app.properties
+++ b/examples/helloworld/dubbo/go-server/assembly/common/app.properties
@@ -1,13 +1,19 @@
-# dubbogo application configure script
-# ******************************************************
-# DESC    : application environment variable
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:29
-# FILE    : app.properties
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 TARGET_EXEC_NAME="user_info_server"
 # BUILD_PACKAGE="dubbogo-examples/user-info/server/app"
diff --git a/examples/helloworld/dubbo/go-server/assembly/common/build.sh b/examples/helloworld/dubbo/go-server/assembly/common/build.sh
index 15ac904f7c265d942d7018439719af7e7391aa41..89a95ce679ca711824a2de0888686be79d96f505 100644
--- a/examples/helloworld/dubbo/go-server/assembly/common/build.sh
+++ b/examples/helloworld/dubbo/go-server/assembly/common/build.sh
@@ -1,13 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:28
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 rm -rf target/
 
diff --git a/examples/helloworld/dubbo/go-server/assembly/linux/dev.sh b/examples/helloworld/dubbo/go-server/assembly/linux/dev.sh
index 55886f09fb4873be84cfa46aae592f5f000120a4..d830ac98c2b9328791d00d5160d487b1a12b5fed 100644
--- a/examples/helloworld/dubbo/go-server/assembly/linux/dev.sh
+++ b/examples/helloworld/dubbo/go-server/assembly/linux/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2018-06-24 17:32
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/helloworld/dubbo/go-server/assembly/linux/release.sh b/examples/helloworld/dubbo/go-server/assembly/linux/release.sh
index 9772ad9614583917d62beba2db9fcaefea63e1ed..99303800b0fbcd7f8dfea668dcf395f126fb99f6 100644
--- a/examples/helloworld/dubbo/go-server/assembly/linux/release.sh
+++ b/examples/helloworld/dubbo/go-server/assembly/linux/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/helloworld/dubbo/go-server/assembly/linux/test.sh b/examples/helloworld/dubbo/go-server/assembly/linux/test.sh
index 2fc4a98862bee5ef11a23e1b74058627a899181d..87144bb973095acaf8c17b0ec3bf42f643d0b95f 100644
--- a/examples/helloworld/dubbo/go-server/assembly/linux/test.sh
+++ b/examples/helloworld/dubbo/go-server/assembly/linux/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/helloworld/dubbo/go-server/assembly/mac/dev.sh b/examples/helloworld/dubbo/go-server/assembly/mac/dev.sh
index 5dfa78490b895ce556c809ead32b6f517a5f1450..3a7659b2d57e0e2502950d76ec6c938abf2b7513 100644
--- a/examples/helloworld/dubbo/go-server/assembly/mac/dev.sh
+++ b/examples/helloworld/dubbo/go-server/assembly/mac/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2018-06-24 17:32
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/helloworld/dubbo/go-server/assembly/mac/release.sh b/examples/helloworld/dubbo/go-server/assembly/mac/release.sh
index 1ec21c7b511ccce9eddfac22a2374b57a7a697bf..1c4bce4bf825fe401823ec33025e004a476ccaaf 100644
--- a/examples/helloworld/dubbo/go-server/assembly/mac/release.sh
+++ b/examples/helloworld/dubbo/go-server/assembly/mac/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/helloworld/dubbo/go-server/assembly/mac/test.sh b/examples/helloworld/dubbo/go-server/assembly/mac/test.sh
index d34914c7dbed0e442b4accf51a3ecdf7c2984db8..69206e32fed343eb87c04190b509b16482125542 100644
--- a/examples/helloworld/dubbo/go-server/assembly/mac/test.sh
+++ b/examples/helloworld/dubbo/go-server/assembly/mac/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 set -e
 
diff --git a/examples/helloworld/dubbo/go-server/assembly/windows/dev.sh b/examples/helloworld/dubbo/go-server/assembly/windows/dev.sh
index 97fbb6f698e500ad08d971b13cc1ffd00cd97803..011fb41148f205bc329118a3c75e52854c0ecfd3 100644
--- a/examples/helloworld/dubbo/go-server/assembly/windows/dev.sh
+++ b/examples/helloworld/dubbo/go-server/assembly/windows/dev.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for dev env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2018-06-24 17:34
-# FILE    : dev.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/helloworld/dubbo/go-server/assembly/windows/release.sh b/examples/helloworld/dubbo/go-server/assembly/windows/release.sh
index 782cb10c7828eb277b5905f10f8dd6ad1c2d6bed..679a26a7dc77a9bc0ccbf119eac3caba252cadc9 100644
--- a/examples/helloworld/dubbo/go-server/assembly/windows/release.sh
+++ b/examples/helloworld/dubbo/go-server/assembly/windows/release.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for release env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:25
-# FILE    : release.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/helloworld/dubbo/go-server/assembly/windows/test.sh b/examples/helloworld/dubbo/go-server/assembly/windows/test.sh
index 2037ddecf2545f1543d5d28be728fb0899722098..4a36de0f3a26b804601de703c62a8062bd0623f4 100644
--- a/examples/helloworld/dubbo/go-server/assembly/windows/test.sh
+++ b/examples/helloworld/dubbo/go-server/assembly/windows/test.sh
@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
-# ******************************************************
-# DESC    : build script for test env
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2016-07-12 16:34
-# FILE    : test.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 
 set -e
diff --git a/examples/helloworld/dubbo/java-server/build.sh b/examples/helloworld/dubbo/java-server/build.sh
index 0c197da639c1c1d9375e18c24dd73366c49deefe..7b5755be183f5b301f0963fcc4a4eace8a341574 100644
--- a/examples/helloworld/dubbo/java-server/build.sh
+++ b/examples/helloworld/dubbo/java-server/build.sh
@@ -1,8 +1,19 @@
 #!/usr/bin/env bash
-# ******************************************************
-# EMAIL   : alexstocks@foxmail.com
-# FILE    : build.sh
-# ******************************************************
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 # mvn dependency:sources
 mvn clean package -Dmaven.test.skip
diff --git a/examples/helloworld/dubbo/java-server/pom.xml b/examples/helloworld/dubbo/java-server/pom.xml
index 975157865e59f24693d755dd20b0aac4b179a793..8c1322860245e874e06ee33584cb6b4d08a68058 100644
--- a/examples/helloworld/dubbo/java-server/pom.xml
+++ b/examples/helloworld/dubbo/java-server/pom.xml
@@ -1,4 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+
+
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/examples/helloworld/dubbo/java-server/script/debug.sh b/examples/helloworld/dubbo/java-server/script/debug.sh
index 27c5d800d846018127e762944151aa8e9ad4495d..851957ade66f7eb492f9be278bf0b6f98eed729a 100644
--- a/examples/helloworld/dubbo/java-server/script/debug.sh
+++ b/examples/helloworld/dubbo/java-server/script/debug.sh
@@ -1,13 +1,20 @@
-#!/us1r/bin/env bash
-# ******************************************************
-# DESC    :
-# AUTHOR  : Alex Stocks
-# VERSION : 1.0
-# LICENCE : Apache License 2.0
-# EMAIL   : alexstocks@foxmail.com
-# MOD     : 2017-10-09 21:52
-# FILE    : to debug user info dubbo server
-# ******************************************************
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 # jdb -classpath /Users/alex/tmp/us/conf:/Users/alex/tmp/us/lib/*:/Users/alex/test/java/dubbo/2.5.4/dubbo-remoting/dubbo-remoting-api/src/main/java/ com.alibaba.dubbo.container.Main
 jdb -classpath /Users/alex/tmp/us/conf:/Users/alex/tmp/us/lib/* -sourcepath /Users/alex/test/java/dubbo/2.5.4/dubbo-remoting/dubbo-remoting-api/src/main/java/:/Users/alex/tmp/java-server/src/main/java com.alibaba.dubbo.container.Main
diff --git a/examples/helloworld/dubbo/java-server/src/main/assembly/assembly.xml b/examples/helloworld/dubbo/java-server/src/main/assembly/assembly.xml
index 2f01fea20f5391112cccb88c87bfe4ae1b59750a..98a2e100f18d195b8f0b44eb07080eaa9097af79 100644
--- a/examples/helloworld/dubbo/java-server/src/main/assembly/assembly.xml
+++ b/examples/helloworld/dubbo/java-server/src/main/assembly/assembly.xml
@@ -1,18 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
- - Copyright 1999-2011 Alibaba Group.
- -  
- - Licensed under the Apache License, Version 2.0 (the "License");
- - you may not use this file except in compliance with the License.
- - You may obtain a copy of the License at
- -  
- -      http://www.apache.org/licenses/LICENSE-2.0
- -  
- - Unless required by applicable law or agreed to in writing, software
- - distributed under the License is distributed on an "AS IS" BASIS,
- - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- - See the License for the specific language governing permissions and
- - limitations under the License.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
+
 <assembly>
 	<id>assembly</id>
 	<formats>
diff --git a/examples/helloworld/dubbo/java-server/src/main/java/com/ikurento/user/User.java b/examples/helloworld/dubbo/java-server/src/main/java/com/ikurento/user/User.java
index 06f3f18f0a8ae940000fae3155e448c3181a0054..fd2cafb31f3cc976ffc70e58eb9e393d771a1b2a 100644
--- a/examples/helloworld/dubbo/java-server/src/main/java/com/ikurento/user/User.java
+++ b/examples/helloworld/dubbo/java-server/src/main/java/com/ikurento/user/User.java
@@ -1,5 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.ikurento.user;
-// ref: https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
 
 import java.util.Date;
 import java.io.Serializable;
diff --git a/examples/helloworld/dubbo/java-server/src/main/java/com/ikurento/user/UserProvider.java b/examples/helloworld/dubbo/java-server/src/main/java/com/ikurento/user/UserProvider.java
index f3301cd642ca58a57ac5e2041ec5f958d383b7fb..b1eeab82f6d2bda7e3e6bac7be220e249f72f6ba 100644
--- a/examples/helloworld/dubbo/java-server/src/main/java/com/ikurento/user/UserProvider.java
+++ b/examples/helloworld/dubbo/java-server/src/main/java/com/ikurento/user/UserProvider.java
@@ -1,6 +1,21 @@
-package com.ikurento.user;
-// https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
+package com.ikurento.user;
 
 public interface UserProvider {
 
diff --git a/examples/helloworld/dubbo/java-server/src/main/java/com/ikurento/user/UserProviderImpl.java b/examples/helloworld/dubbo/java-server/src/main/java/com/ikurento/user/UserProviderImpl.java
index 4a394b80a4b767f25e2ff13b2d4cfe7a500f759a..0d66c430052ac5a8aa3c914b9c9f0a4ab116d46a 100644
--- a/examples/helloworld/dubbo/java-server/src/main/java/com/ikurento/user/UserProviderImpl.java
+++ b/examples/helloworld/dubbo/java-server/src/main/java/com/ikurento/user/UserProviderImpl.java
@@ -1,6 +1,21 @@
-package com.ikurento.user;
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
-// ref: https://github.com/JoeCao/dubbo_jsonrpc_example/tree/master/dubbo_server/src/main/java/com/ofpay/demo/api
+package com.ikurento.user;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
diff --git a/examples/helloworld/dubbo/java-server/src/main/resources/META-INF/spring/dubbo.provider.xml b/examples/helloworld/dubbo/java-server/src/main/resources/META-INF/spring/dubbo.provider.xml
index fe23e1f3e91d841c30534c82d8d69e6628f6b528..edd01dc870b3bb16ffd7525387e994ea11da9b8e 100644
--- a/examples/helloworld/dubbo/java-server/src/main/resources/META-INF/spring/dubbo.provider.xml
+++ b/examples/helloworld/dubbo/java-server/src/main/resources/META-INF/spring/dubbo.provider.xml
@@ -1,19 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
- - Copyright 1999-2011 Alibaba Group.
- -
- - Licensed under the Apache License, Version 2.0 (the "License");
- - you may not use this file except in compliance with the License.
- - You may obtain a copy of the License at
- -
- -      http://www.apache.org/licenses/LICENSE-2.0
- -
- - Unless required by applicable law or agreed to in writing, software
- - distributed under the License is distributed on an "AS IS" BASIS,
- - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- - See the License for the specific language governing permissions and
- - limitations under the License.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
+
 <beans xmlns="http://www.springframework.org/schema/beans"
 	   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	   xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/app/client.go b/examples/hystrixfilter/dubbo/with-hystrix-go-client/app/client.go
new file mode 100644
index 0000000000000000000000000000000000000000..0d8d7d2ffd6b7ea5db3831b55fa4dc45ace302c5
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/app/client.go
@@ -0,0 +1,130 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+)
+
+import (
+	"github.com/apache/dubbo-go-hessian2"
+)
+
+import (
+	"github.com/apache/dubbo-go/common/logger"
+	_ "github.com/apache/dubbo-go/common/proxy/proxy_factory"
+	"github.com/apache/dubbo-go/config"
+	_ "github.com/apache/dubbo-go/protocol/dubbo"
+	_ "github.com/apache/dubbo-go/registry/protocol"
+
+	_ "github.com/apache/dubbo-go/filter/impl"
+
+	_ "github.com/apache/dubbo-go/cluster/cluster_impl"
+	_ "github.com/apache/dubbo-go/cluster/loadbalance"
+	_ "github.com/apache/dubbo-go/registry/zookeeper"
+)
+
+var (
+	survivalTimeout int = 10e9
+)
+
+// they are necessary:
+// 		export CONF_CONSUMER_FILE_PATH="xxx"
+// 		export APP_LOG_CONF_FILE="xxx"
+func main() {
+
+	hessian.RegisterJavaEnum(Gender(MAN))
+	hessian.RegisterJavaEnum(Gender(WOMAN))
+	hessian.RegisterPOJO(&User{})
+	getUserChan := make(chan string, 32)
+	getErrChan := make(chan string, 32)
+	getUser1Chan := make(chan string, 32)
+
+	config.Load()
+	logger.Debugf("[Start to test GetUser]")
+	for i := 0; i < 32; i++ {
+		go func() {
+			user := &User{}
+			err := userProvider.GetUser(context.TODO(), []interface{}{"A003"}, user)
+			getUserChan <- fmt.Sprintf("Result: %s ; Error: %v", user.Name, err)
+		}()
+	}
+	time.Sleep(time.Second * 4)
+
+	logger.Debugf("[Start to test GetErr, without error whitelist]")
+	for i := 0; i < 32; i++ {
+		go func() {
+			user := &User{}
+			err := userProvider.GetErr(context.TODO(), []interface{}{"A003"}, user)
+			getErrChan <- fmt.Sprintf("Result: %s ; Error: %v", user.Name, err)
+		}()
+	}
+	time.Sleep(time.Second * 4)
+
+	logger.Debugf("[Start to test illegal method GetUser1, with error whitelist]")
+	for i := 0; i < 32; i++ {
+		go func() {
+			user := &User{}
+			err := userProvider.GetUser1(context.TODO(), []interface{}{"A003"}, user)
+			getUser1Chan <- fmt.Sprintf("Result: %s ; Error: %v", user.Name, err)
+		}()
+	}
+	time.Sleep(time.Second * 4)
+	for i := 1; i < 32; i++ {
+		resGot := <-getUserChan
+		logger.Infof("[GetUser] %v", resGot)
+	}
+	for i := 1; i < 32; i++ {
+		resGot := <-getErrChan
+		logger.Infof("[GetErr] %v", resGot)
+	}
+	for i := 1; i < 32; i++ {
+		resGot := <-getUser1Chan
+		logger.Infof("[GetUser1] %v", resGot)
+	}
+	//initSignal()
+}
+
+func initSignal() {
+	signals := make(chan os.Signal, 1)
+	// It is not possible to block SIGKILL or syscall.SIGSTOP
+	signal.Notify(signals, os.Interrupt, os.Kill, syscall.SIGHUP,
+		syscall.SIGQUIT, syscall.SIGTERM, syscall.SIGINT)
+	for {
+		sig := <-signals
+		logger.Infof("get signal %s", sig.String())
+		switch sig {
+		case syscall.SIGHUP:
+			// reload()
+		default:
+			go time.AfterFunc(time.Duration(survivalTimeout)*time.Second, func() {
+				logger.Warnf("app exit now by force...")
+				os.Exit(1)
+			})
+
+			// 瑕佷箞fastFailTimeout鏃堕棿鍐呮墽琛屽畬姣曚笅闈㈢殑閫昏緫鐒跺悗绋嬪簭閫€鍑猴紝瑕佷箞鎵ц涓婇潰鐨勮秴鏃跺嚱鏁扮▼搴忓己琛岄€€鍑�
+			fmt.Println("app exit now...")
+			return
+		}
+	}
+}
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/app/example_fallback_filter.go b/examples/hystrixfilter/dubbo/with-hystrix-go-client/app/example_fallback_filter.go
new file mode 100644
index 0000000000000000000000000000000000000000..0e86988fd787e0df941b62ad038746b412baf314
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/app/example_fallback_filter.go
@@ -0,0 +1,80 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package main
+
+import (
+	"time"
+)
+
+import (
+	"github.com/apache/dubbo-go/common/extension"
+	"github.com/apache/dubbo-go/common/logger"
+	"github.com/apache/dubbo-go/filter"
+	"github.com/apache/dubbo-go/filter/impl"
+	"github.com/apache/dubbo-go/protocol"
+)
+
+const (
+	EXAMPLE_FALLBACK_FILTER = "example_fallback"
+)
+
+//This is an example filter that handles result from hystrix filter
+//Define your filters and write your service downgrade strategy like this
+//TODO: Maybe a base fallback filter can be offered
+type ExampleFallbackFilter struct {
+}
+
+func GetExampleFallbackFilter() filter.Filter {
+	return &ExampleFallbackFilter{}
+}
+
+//The name should be the same as in your config
+//Put the filter in front of hystrix filter
+func init() {
+	extension.SetFilter(EXAMPLE_FALLBACK_FILTER, GetExampleFallbackFilter)
+}
+
+func (ff *ExampleFallbackFilter) Invoke(invoker protocol.Invoker, invocation protocol.Invocation) protocol.Result {
+	return invoker.Invoke(invocation)
+
+}
+func (ff *ExampleFallbackFilter) OnResponse(result protocol.Result, invoker protocol.Invoker, invocation protocol.Invocation) protocol.Result {
+	if err := result.Error(); err != nil {
+		hystrixError, ok := err.(*impl.HystrixFilterError)
+		if ok {
+			if hystrixError.FailByHystrix() {
+				logger.Debugf("[Example fallback filter]%s get error caused by %s", invocation.MethodName(), hystrixError.Error())
+				//Handle the error caused by Hystrix, including circuit breaking, concurrency limit and timeout
+				//The detailed error source can be got through hystrixError.Error()
+				//In this example we return a mock result under this circumstance
+				res := User{
+					"MockID",
+					"MockName",
+					55,
+					time.Now(),
+					Gender(MAN),
+				}
+				*(invocation.Reply().(*User)) = res
+				result.SetResult(&res)
+				result.SetError(nil)
+			}
+		}
+	}
+	//If the error is not caused by hystrix, the result doesn't come from hystrix filter or there's no error,
+	//we just return it here.
+	return result
+}
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/app/user.go b/examples/hystrixfilter/dubbo/with-hystrix-go-client/app/user.go
new file mode 100644
index 0000000000000000000000000000000000000000..affa5418a701842e890f9e2498c2ef7a769532bd
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/app/user.go
@@ -0,0 +1,149 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+	"time"
+)
+
+import (
+	hessian "github.com/apache/dubbo-go-hessian2"
+)
+
+import (
+	"github.com/apache/dubbo-go/config"
+)
+
+type Gender hessian.JavaEnum
+
+var (
+	userProvider  = new(UserProvider)
+	userProvider1 = new(UserProvider1)
+	userProvider2 = new(UserProvider2)
+)
+
+func init() {
+	config.SetConsumerService(userProvider)
+	config.SetConsumerService(userProvider1)
+	config.SetConsumerService(userProvider2)
+}
+
+const (
+	MAN hessian.JavaEnum = iota
+	WOMAN
+)
+
+var genderName = map[hessian.JavaEnum]string{
+	MAN:   "MAN",
+	WOMAN: "WOMAN",
+}
+
+var genderValue = map[string]hessian.JavaEnum{
+	"MAN":   MAN,
+	"WOMAN": WOMAN,
+}
+
+func (g Gender) JavaClassName() string {
+	return "com.ikurento.user.Gender"
+}
+
+func (g Gender) String() string {
+	s, ok := genderName[hessian.JavaEnum(g)]
+	if ok {
+		return s
+	}
+
+	return strconv.Itoa(int(g))
+}
+
+func (g Gender) EnumValue(s string) hessian.JavaEnum {
+	v, ok := genderValue[s]
+	if ok {
+		return v
+	}
+
+	return hessian.InvalidJavaEnum
+}
+
+type User struct {
+	// !!! Cannot define lowercase names of variable
+	Id   string
+	Name string
+	Age  int32
+	Time time.Time
+	Sex  Gender // 娉ㄦ剰姝ゅ锛宩ava enum Object <--> go string
+}
+
+func (u User) String() string {
+	return fmt.Sprintf(
+		"User{Id:%s, Name:%s, Age:%d, Time:%s, Sex:%s}",
+		u.Id, u.Name, u.Age, u.Time, u.Sex,
+	)
+}
+
+func (User) JavaClassName() string {
+	return "com.ikurento.user.User"
+}
+
+type UserProvider struct {
+	GetUsers func(req []interface{}) ([]interface{}, error)
+	GetErr   func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser  func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser0 func(id string, name string) (User, error)
+	GetUser1 func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser2 func(ctx context.Context, req []interface{}, rsp *User) error `dubbo:"getUser"`
+	GetUser3 func() error
+	Echo     func(ctx context.Context, req interface{}) (interface{}, error) // Echo represent EchoFilter will be used
+}
+
+func (u *UserProvider) Reference() string {
+	return "UserProvider"
+}
+
+type UserProvider1 struct {
+	GetUsers func(req []interface{}) ([]interface{}, error)
+	GetErr   func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser  func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser0 func(id string, name string) (User, error)
+	GetUser1 func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser2 func(ctx context.Context, req []interface{}, rsp *User) error `dubbo:"getUser"`
+	GetUser3 func() error
+	Echo     func(ctx context.Context, req interface{}) (interface{}, error) // Echo represent EchoFilter will be used
+}
+
+func (u *UserProvider1) Reference() string {
+	return "UserProvider1"
+}
+
+type UserProvider2 struct {
+	GetUsers func(req []interface{}) ([]interface{}, error)
+	GetErr   func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser  func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser0 func(id string, name string) (User, error)
+	GetUser1 func(ctx context.Context, req []interface{}, rsp *User) error
+	GetUser2 func(ctx context.Context, req []interface{}, rsp *User) error `dubbo:"getUser"`
+	GetUser3 func() error
+	Echo     func(ctx context.Context, req interface{}) (interface{}, error) // Echo represent EchoFilter will be used
+}
+
+func (u *UserProvider2) Reference() string {
+	return "UserProvider2"
+}
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/app/version.go b/examples/hystrixfilter/dubbo/with-hystrix-go-client/app/version.go
new file mode 100644
index 0000000000000000000000000000000000000000..c6138584f1ddeab3a4927774f44f9e78a8f08da7
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/app/version.go
@@ -0,0 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+var (
+	Version = "2.6.0"
+)
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/bin/load.sh b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/bin/load.sh
new file mode 100644
index 0000000000000000000000000000000000000000..ffa240b29d9e76761a151e7462092b86908de6f6
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/bin/load.sh
@@ -0,0 +1,203 @@
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+APP_NAME="APPLICATION_NAME"
+APP_ARGS=""
+SLEEP_INTERVAL=5
+MAX_LIFETIME=4000
+
+PROJECT_HOME=""
+OS_NAME=`uname`
+if [[ ${OS_NAME} != "Windows" ]]; then
+    PROJECT_HOME=`pwd`
+    PROJECT_HOME=${PROJECT_HOME}"/"
+else
+    APP_NAME="APPLICATION_NAME.exe"
+fi
+
+export CONF_CONSUMER_FILE_PATH=${PROJECT_HOME}"TARGET_CONF_FILE"
+export APP_LOG_CONF_FILE=${PROJECT_HOME}"TARGET_LOG_CONF_FILE"
+# export GOTRACEBACK=system
+# export GODEBUG=gctrace=1
+
+usage() {
+    echo "Usage: $0 start [conf suffix]"
+    echo "       $0 stop"
+    echo "       $0 term"
+    echo "       $0 restart"
+    echo "       $0 list"
+    echo "       $0 monitor"
+    echo "       $0 crontab"
+    exit
+}
+
+start() {
+    arg=$1
+    if [ "$arg" = "" ];then
+        echo "No registry type! Default client.yml!"
+    else
+        export CONF_CONSUMER_FILE_PATH=${CONF_CONSUMER_FILE_PATH//\.yml/\_$arg\.yml}
+    fi
+    if [ ! -f "${CONF_CONSUMER_FILE_PATH}" ];then
+        echo $CONF_CONSUMER_FILE_PATH" is not existing!"
+        return
+    fi
+    APP_LOG_PATH=${PROJECT_HOME}"logs/"
+    mkdir -p ${APP_LOG_PATH}
+    APP_BIN=${PROJECT_HOME}sbin/${APP_NAME}
+    chmod u+x ${APP_BIN}
+    # CMD="nohup ${APP_BIN} ${APP_ARGS} >>${APP_NAME}.nohup.out 2>&1 &"
+    CMD="${APP_BIN}"
+    eval ${CMD}
+    PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $2}'`
+    if [[ ${OS_NAME} != "Linux" && ${OS_NAME} != "Darwin" ]]; then
+        PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $1}'`
+    fi
+    CUR=`date +%FT%T`
+    if [ "${PID}" != "" ]; then
+        for p in ${PID}
+        do
+            echo "start ${APP_NAME} ( pid =" ${p} ") at " ${CUR}
+        done
+    fi
+}
+
+stop() {
+    PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $2}'`
+    if [[ ${OS_NAME} != "Linux" && ${OS_NAME} != "Darwin" ]]; then
+        PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $1}'`
+    fi
+    if [ "${PID}" != "" ];
+    then
+        for ps in ${PID}
+        do
+            echo "kill -SIGINT ${APP_NAME} ( pid =" ${ps} ")"
+            kill -2 ${ps}
+        done
+    fi
+}
+
+
+term() {
+    PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $2}'`
+    if [[ ${OS_NAME} != "Linux" && ${OS_NAME} != "Darwin" ]]; then
+        PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $1}'`
+    fi
+    if [ "${PID}" != "" ];
+    then
+        for ps in ${PID}
+        do
+            echo "kill -9 ${APP_NAME} ( pid =" ${ps} ")"
+            kill -9 ${ps}
+        done
+    fi
+}
+
+list() {
+    PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{printf("%s,%s,%s,%s\n", $1, $2, $9, $10)}'`
+    if [[ ${OS_NAME} != "Linux" && ${OS_NAME} != "Darwin" ]]; then
+        PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{printf("%s,%s,%s,%s,%s\n", $1, $4, $6, $7, $8)}'`
+    fi
+
+    if [ "${PID}" != "" ]; then
+        echo "list ${APP_NAME}"
+
+        if [[ ${OS_NAME} == "Linux" || ${OS_NAME} == "Darwin" ]]; then
+            echo "index: user, pid, start, duration"
+        else
+            echo "index: PID, WINPID, UID, STIME, COMMAND"
+        fi
+        idx=0
+        for ps in ${PID}
+        do
+            echo "${idx}: ${ps}"
+            ((idx ++))
+        done
+    fi
+}
+
+monitor() {
+    idx=0
+    while true; do
+        PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $2}'`
+        if [[ ${OS_NAME} != "Linux" && ${OS_NAME} != "Darwin" ]]; then
+            PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $1}'`
+        fi
+        if [[ "${PID}" == "" ]]; then
+            start
+            idx=0
+        fi
+
+        ((LIFE=idx*${SLEEP_INTERVAL}))
+        echo "${APP_NAME} ( pid = " ${PID} ") has been working in normal state for " $LIFE " seconds."
+        ((idx ++))
+        sleep ${SLEEP_INTERVAL}
+    done
+}
+
+crontab() {
+    idx=0
+    while true; do
+        PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $2}'`
+        if [[ ${OS_NAME} != "Linux" && ${OS_NAME} != "Darwin" ]]; then
+            PID=`ps aux | grep -w ${APP_NAME} | grep -v grep | awk '{print $1}'`
+        fi
+        if [[ "${PID}" == "" ]]; then
+            start
+            idx=0
+        fi
+
+        ((LIFE=idx*${SLEEP_INTERVAL}))
+        echo "${APP_NAME} ( pid = " ${PID} ") has been working in normal state for " $LIFE " seconds."
+        ((idx ++))
+        sleep ${SLEEP_INTERVAL}
+        if [[ ${LIFE} -gt ${MAX_LIFETIME} ]]; then
+            kill -9 ${PID}
+        fi
+    done
+}
+
+opt=$1
+case C"$opt" in
+    Cstart)
+        start $2
+        ;;
+    Cstop)
+        stop
+        ;;
+    Cterm)
+        term
+        ;;
+    Crestart)
+        term
+        start $2
+        ;;
+    Clist)
+        list
+        ;;
+    Cmonitor)
+        monitor
+        ;;
+    Ccrontab)
+        crontab
+        ;;
+    C*)
+        usage
+        ;;
+esac
+
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/common/app.properties b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/common/app.properties
new file mode 100644
index 0000000000000000000000000000000000000000..e10868f4d292765c7eeb2e8bb8b1684a44f56a14
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/common/app.properties
@@ -0,0 +1,23 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+export TARGET_EXEC_NAME="user_info_client"
+# BUILD_PACKAGE="dubbogo-examples/user-info/client/app"
+export BUILD_PACKAGE="app"
+
+export TARGET_CONF_FILE="conf/client.yml"
+export TARGET_LOG_CONF_FILE="conf/log.yml"
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/common/build.sh b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/common/build.sh
new file mode 100644
index 0000000000000000000000000000000000000000..c9a9e87c73ef45195d6f70acccf9374ee6cb906b
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/common/build.sh
@@ -0,0 +1,83 @@
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+rm -rf target/
+
+PROJECT_HOME=`pwd`
+TARGET_FOLDER=${PROJECT_HOME}/target/${GOOS}
+
+TARGET_SBIN_NAME=${TARGET_EXEC_NAME}
+version=`cat app/version.go | grep Version | grep -v "Apache" | awk -F '=' '{print $2}' | awk -F '"' '{print $2}'`
+if [[ ${GOOS} == "windows" ]]; then
+    TARGET_SBIN_NAME=${TARGET_SBIN_NAME}.exe
+fi
+TARGET_NAME=${TARGET_FOLDER}/${TARGET_SBIN_NAME}
+if [[ $PROFILE == "dev" ||  $PROFILE == "test" ]]; then
+    # GFLAGS=-gcflags "-N -l" -race -x -v # -x浼氭妸go build鐨勮缁嗚繃绋嬭緭鍑�
+    # GFLAGS=-gcflags "-N -l" -race -v
+    # GFLAGS="-gcflags \"-N -l\" -v"
+    cd ${BUILD_PACKAGE} && GOOS=$GOOS GOARCH=$GOARCH go build -gcflags "-N -l" -x -v -i -o ${TARGET_NAME} && cd -
+else
+    # -s鍘绘帀绗﹀彿琛紙鐒跺悗panic鏃跺€欑殑stack trace灏辨病鏈変换浣曟枃浠跺悕/琛屽彿淇℃伅浜嗭紝杩欎釜绛変环浜庢櫘閫欳/C++绋嬪簭琚玸trip鐨勬晥鏋滐級锛�
+    # -w鍘绘帀DWARF璋冭瘯淇℃伅锛屽緱鍒扮殑绋嬪簭灏变笉鑳界敤gdb璋冭瘯浜嗐€�-s鍜�-w涔熷彲浠ュ垎寮€浣跨敤锛屼竴鑸潵璇村鏋滀笉鎵撶畻鐢╣db璋冭瘯锛�
+    # -w鍩烘湰娌″暐鎹熷け銆�-s鐨勬崯澶卞氨鏈夌偣澶т簡銆�
+    cd ${BUILD_PACKAGE} && GOOS=$GOOS GOARCH=$GOARCH go build -ldflags "-w" -x -v -i -o ${TARGET_NAME} && cd -
+fi
+
+TAR_NAME=${TARGET_EXEC_NAME}-${version}-`date "+%Y%m%d-%H%M"`-${PROFILE}
+
+mkdir -p ${TARGET_FOLDER}/${TAR_NAME}
+
+SBIN_DIR=${TARGET_FOLDER}/${TAR_NAME}/sbin
+BIN_DIR=${TARGET_FOLDER}/${TAR_NAME}
+CONF_DIR=${TARGET_FOLDER}/${TAR_NAME}/conf
+
+mkdir -p ${SBIN_DIR}
+mkdir -p ${CONF_DIR}
+
+mv ${TARGET_NAME} ${SBIN_DIR}
+cp -r assembly/bin ${BIN_DIR}
+cd ${BIN_DIR}/bin/ && mv load.sh load_${TARGET_EXEC_NAME}.sh && cd -
+
+platform=$(uname)
+# modify APPLICATION_NAME
+if [ ${platform} == "Darwin" ]; then
+    sed -i "" "s~APPLICATION_NAME~${TARGET_EXEC_NAME}~g" ${BIN_DIR}/bin/*
+else
+    sed -i "s~APPLICATION_NAME~${TARGET_EXEC_NAME}~g" ${BIN_DIR}/bin/*
+fi
+
+# modify TARGET_CONF_FILE
+if [ ${platform} == "Darwin" ]; then
+    sed -i "" "s~TARGET_CONF_FILE~${TARGET_CONF_FILE}~g" ${BIN_DIR}/bin/*
+else
+    sed -i "s~TARGET_CONF_FILE~${TARGET_CONF_FILE}~g" ${BIN_DIR}/bin/*
+fi
+
+# modify TARGET_LOG_CONF_FILE
+if [ ${platform} == "Darwin" ]; then
+    sed -i "" "s~TARGET_LOG_CONF_FILE~${TARGET_LOG_CONF_FILE}~g" ${BIN_DIR}/bin/*
+else
+    sed -i "s~TARGET_LOG_CONF_FILE~${TARGET_LOG_CONF_FILE}~g" ${BIN_DIR}/bin/*
+fi
+
+cp -r profiles/${PROFILE}/* ${CONF_DIR}
+
+cd ${TARGET_FOLDER}
+
+tar czf ${TAR_NAME}.tar.gz ${TAR_NAME}/*
+
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/linux/dev.sh b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/linux/dev.sh
new file mode 100644
index 0000000000000000000000000000000000000000..eada737c8d0939d4237a6d218fc2a07efdbff381
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/linux/dev.sh
@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+
+set -e
+
+export GOOS=linux
+export GOARCH=amd64
+
+export PROFILE="dev"
+
+PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+  . ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+  sh ${PROJECT_HOME}/assembly/common/build.sh
+fi
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/linux/release.sh b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/linux/release.sh
new file mode 100644
index 0000000000000000000000000000000000000000..10eb3d73f8760d394537b90b7aeff83ca2b243ed
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/linux/release.sh
@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+
+set -e
+
+export GOOS=linux
+export GOARCH=amd64
+
+export PROFILE="release"
+export PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+  . ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+  sh ${PROJECT_HOME}/assembly/common/build.sh
+fi
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/linux/test.sh b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/linux/test.sh
new file mode 100644
index 0000000000000000000000000000000000000000..78b650c0d49483f9f6862532afa5c483b618475a
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/linux/test.sh
@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+
+set -e
+
+export GOOS=linux
+export GOARCH=amd64
+
+export PROFILE="test"
+export PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+  . ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+  sh ${PROJECT_HOME}/assembly/common/build.sh
+fi
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/mac/dev.sh b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/mac/dev.sh
new file mode 100644
index 0000000000000000000000000000000000000000..c8284769909e62f0142c29e3a63177bf2826593f
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/mac/dev.sh
@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+
+set -e
+
+export GOOS=darwin
+export GOARCH=amd64
+
+export PROFILE="dev"
+
+export PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+	. ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+	sh ${PROJECT_HOME}/assembly/common/build.sh
+fi
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/mac/release.sh b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/mac/release.sh
new file mode 100644
index 0000000000000000000000000000000000000000..91c2dfee79b1499b640420191174f980eac187bb
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/mac/release.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+
+set -e
+
+export GOOS=darwin
+export GOARCH=amd64
+
+export PROFILE="release"
+export PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+  . ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+  sh ${PROJECT_HOME}/assembly/common/build.sh
+fi
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/mac/test.sh b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/mac/test.sh
new file mode 100644
index 0000000000000000000000000000000000000000..a7853f5e2d51df8e3e9509621952c44bca0d1a2d
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/mac/test.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+set -e
+
+export GOOS=darwin
+export GOARCH=amd64
+
+export PROFILE="test"
+export PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+  . ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+  sh ${PROJECT_HOME}/assembly/common/build.sh
+fi
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/windows/dev.sh b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/windows/dev.sh
new file mode 100644
index 0000000000000000000000000000000000000000..10a3866c0f4ed8e1070c4d5641259c04073df6cb
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/windows/dev.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+
+set -e
+
+export GOOS=linux
+export GOARCH=amd64
+
+export PROFILE="dev"
+PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+  . ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+  sh ${PROJECT_HOME}/assembly/common/build.sh
+fi
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/windows/release.sh b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/windows/release.sh
new file mode 100644
index 0000000000000000000000000000000000000000..21af573fa3842d47959d5726b11b81d5fff5b8df
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/windows/release.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+
+set -e
+
+export GOOS=windows
+export GOARCH=amd64
+
+export PROFILE="release"
+export PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+  . ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+  sh ${PROJECT_HOME}/assembly/common/build.sh
+fi
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/windows/test.sh b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/windows/test.sh
new file mode 100644
index 0000000000000000000000000000000000000000..2104da8b5909957c165eedc2f7d6866a890e9e6d
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/assembly/windows/test.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+
+set -e
+
+export GOOS=windows
+export GOARCH=amd64
+
+export PROFILE="test"
+export PROJECT_HOME=`pwd`
+
+if [ -f "${PROJECT_HOME}/assembly/common/app.properties" ]; then
+  . ${PROJECT_HOME}/assembly/common/app.properties
+fi
+
+if [ -f "${PROJECT_HOME}/assembly/common/build.sh" ]; then
+  sh ${PROJECT_HOME}/assembly/common/build.sh
+fi
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/dev/client.yml b/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/dev/client.yml
new file mode 100644
index 0000000000000000000000000000000000000000..5b5003fb2cabde05e7d99e738afd584a635355bd
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/dev/client.yml
@@ -0,0 +1,98 @@
+# dubbo client yaml configure file
+
+
+check: true
+# client
+request_timeout : "3s"
+# connect timeout
+connect_timeout : "3s"
+
+# application config
+application_config:
+  organization : "ikurento.com"
+  name  : "BDTService"
+  module : "dubbogo user-info client"
+  version : "0.0.1"
+  owner : "ZX"
+  environment : "dev"
+
+registries :
+  "hangzhouzk":
+    # 瀵瑰簲java閰嶇疆涓璦ddress灞炴€х殑zookeeper <dubbo:registry address="zookeeper://127.0.0.1:2181"/>
+    protocol: "zookeeper"
+    timeout	: "3s"
+    address: "127.0.0.1:2181"
+    username: ""
+    password: ""
+  "shanghaizk":
+    protocol: "zookeeper"
+    timeout	: "3s"
+    address: "127.0.0.1:2182"
+    username: ""
+    password: ""
+
+references:
+  "UserProvider":
+    # 鍙互鎸囧畾澶氫釜registry锛屼娇鐢ㄩ€楀彿闅斿紑;涓嶆寚瀹氶粯璁ゅ悜鎵€鏈夋敞鍐屼腑蹇冩敞鍐�
+    registry: "hangzhouzk"
+    filter: "example_fallback,hystrix_consumer"
+    protocol : "dubbo"
+    interface : "com.ikurento.user.UserProvider"
+    cluster: "failover"
+    methods :
+      - name: "GetUser"
+        retries: 3
+
+protocol_conf:
+  dubbo:
+    reconnect_interval: 0
+    connection_number: 2
+    heartbeat_period: "5s"
+    session_timeout: "20s"
+    fail_fast_timeout: "5s"
+    pool_size: 64
+    pool_ttl: 600
+    getty_session_param:
+      compress_encoding: false
+      tcp_no_delay: true
+      tcp_keep_alive: true
+      keep_alive_period: "120s"
+      tcp_r_buf_size: 262144
+      tcp_w_buf_size: 65536
+      pkg_rq_size: 1024
+      pkg_wq_size: 512
+      tcp_read_timeout: "1s"
+      tcp_write_timeout: "5s"
+      wait_timeout: "1s"
+      max_msg_len: 10240
+      session_name: "client"
+
+filter_conf:
+  hystrix:
+    configs:
+      "Default":
+        timeout : 1000
+        max_concurrent_requests : 25
+        sleep_window : 5000
+        error_percent_threshold : 50
+        request_volume_threshold: 20
+      "userp":
+        timeout: 2000
+        max_concurrent_requests: 512
+        sleep_window: 4000
+        error_percent_threshold: 35
+        request_volume_threshold: 6
+      "userp_m":
+        timeout : 1200
+        max_concurrent_requests : 512
+        sleep_window : 6000
+        error_percent_threshold : 60
+        request_volume_threshold: 16
+        error_whitelist: [".*exception.*"]
+    default: "Default"
+    services:
+      "com.ikurento.user.UserProvider":
+        service_config: "userp"
+        methods:
+          "GetUser": "userp_m"
+          "GetUser1": "userp_m"
\ No newline at end of file
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/dev/log.yml b/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/dev/log.yml
new file mode 100644
index 0000000000000000000000000000000000000000..3ed242d290148743b198e32c5823ad9aae233e8b
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/dev/log.yml
@@ -0,0 +1,28 @@
+
+level: "debug"
+development: true
+disableCaller: false
+disableStacktrace: false
+sampling:
+encoding: "console"
+
+# encoder
+encoderConfig:
+  messageKey: "message"
+  levelKey: "level"
+  timeKey: "time"
+  nameKey: "logger"
+  callerKey: "caller"
+  stacktraceKey: "stacktrace"
+  lineEnding: ""
+  levelEncoder: "capitalColor"
+  timeEncoder: "iso8601"
+  durationEncoder: "seconds"
+  callerEncoder: "short"
+  nameEncoder: ""
+
+outputPaths:
+  - "stderr"
+errorOutputPaths:
+  - "stderr"
+initialFields:
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/release/client.yml b/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/release/client.yml
new file mode 100644
index 0000000000000000000000000000000000000000..9263f2d01ff5288144876eb14c08060bdb165974
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/release/client.yml
@@ -0,0 +1,98 @@
+# dubbo client yaml configure file
+
+
+check: true
+# client
+request_timeout : "3s"
+# connect timeout
+connect_timeout : "3s"
+
+# application config
+application_config:
+  organization : "ikurento.com"
+  name  : "BDTService"
+  module : "dubbogo user-info client"
+  version : "0.0.1"
+  owner : "ZX"
+  environment : "release"
+
+registries :
+  "hangzhouzk":
+    protocol: "zookeeper"
+    timeout	: "3s"
+    address: "127.0.0.1:2181"
+    username: ""
+    password: ""
+  "shanghaizk":
+    protocol: "zookeeper"
+    timeout	: "3s"
+    address: "127.0.0.1:2182"
+    username: ""
+    password: ""
+
+references:
+  "UserProvider":
+    # 鍙互鎸囧畾澶氫釜registry锛屼娇鐢ㄩ€楀彿闅斿紑;涓嶆寚瀹氶粯璁ゅ悜鎵€鏈夋敞鍐屼腑蹇冩敞鍐�
+    registry: "hangzhouzk"
+    filter: "example_fallback,hystrix_consumer"
+    protocol : "dubbo"
+#    version: "2.0"
+#    group: "as"
+    interface : "com.ikurento.user.UserProvider"
+    cluster: "failover"
+    methods :
+      - name: "GetUser"
+        retries: 3
+
+protocol_conf:
+  dubbo:
+    reconnect_interval: 0
+    connection_number: 2
+    heartbeat_period: "5s"
+    session_timeout: "20s"
+    fail_fast_timeout: "5s"
+    pool_size: 64
+    pool_ttl: 600
+    getty_session_param:
+      compress_encoding: false
+      tcp_no_delay: true
+      tcp_keep_alive: true
+      keep_alive_period: "120s"
+      tcp_r_buf_size: 262144
+      tcp_w_buf_size: 65536
+      pkg_rq_size: 1024
+      pkg_wq_size: 512
+      tcp_read_timeout: "1s"
+      tcp_write_timeout: "5s"
+      wait_timeout: "1s"
+      max_msg_len: 10240
+      session_name: "client"
+
+filter_conf:
+  hystrix:
+    configs:
+      "Default":
+        timeout : 1000
+        max_concurrent_requests : 10
+        sleep_window : 5000
+        error_percent_threshold : 50
+        request_volume_threshold: 20
+      "userp":
+        timeout: 1200
+        max_concurrent_requests: 8
+        sleep_window: 4000
+        error_percent_threshold: 45
+        request_volume_threshold: 15
+      "userp_m":
+        timeout : 1200
+        max_concurrent_requests : 12
+        sleep_window : 6000
+        error_percent_threshold : 60
+        request_volume_threshold: 30
+        fallback: "exampleFallback"
+    default: "Default"
+    services:
+      "com.ikurento.user.UserProvider":
+        service_config: "userp"
+        methods:
+          "GetUser": "userp_m"
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/release/log.yml b/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/release/log.yml
new file mode 100644
index 0000000000000000000000000000000000000000..d8606247b8479ac5054fd2ef70a0af4bca85c4c4
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/release/log.yml
@@ -0,0 +1,28 @@
+
+level: "warn"
+development: true
+disableCaller: true
+disableStacktrace: true
+sampling:
+encoding: "console"
+
+# encoder
+encoderConfig:
+  messageKey: "message"
+  levelKey: "level"
+  timeKey: "time"
+  nameKey: "logger"
+  callerKey: "caller"
+  stacktraceKey: "stacktrace"
+  lineEnding: ""
+  levelEncoder: "capitalColor"
+  timeEncoder: "iso8601"
+  durationEncoder: "seconds"
+  callerEncoder: "short"
+  nameEncoder: ""
+
+outputPaths:
+  - "stderr"
+errorOutputPaths:
+  - "stderr"
+initialFields:
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/test/client.yml b/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/test/client.yml
new file mode 100644
index 0000000000000000000000000000000000000000..048703b6bb130fbd26f5be88650e950f70355a24
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/test/client.yml
@@ -0,0 +1,99 @@
+# dubbo client yaml configure file
+
+
+check: true
+# client
+request_timeout : "3s"
+# connect timeout
+connect_timeout : "3s"
+
+# application config
+application_config:
+  organization : "ikurento.com"
+  name  : "BDTService"
+  module : "dubbogo user-info client"
+  version : "0.0.1"
+  owner : "ZX"
+  environment : "test"
+
+registries :
+  "hangzhouzk":
+    protocol: "zookeeper"
+    timeout	: "3s"
+    address: "127.0.0.1:2181"
+    username: ""
+    password: ""
+  "shanghaizk":
+    protocol: "zookeeper"
+    timeout	: "3s"
+    address: "127.0.0.1:2182"
+    username: ""
+    password: ""
+
+references:
+  "UserProvider":
+    # 鍙互鎸囧畾澶氫釜registry锛屼娇鐢ㄩ€楀彿闅斿紑;涓嶆寚瀹氶粯璁ゅ悜鎵€鏈夋敞鍐屼腑蹇冩敞鍐�
+    registry: "hangzhouzk"
+    filter: "example_fallback,hystrix_consumer"
+    protocol : "dubbo"
+#    version: "2.0"
+#    group: "as"
+    interface : "com.ikurento.user.UserProvider"
+    cluster: "failover"
+    methods :
+      - name: "GetUser"
+        retries: 3
+
+protocol_conf:
+  dubbo:
+    reconnect_interval: 0
+    connection_number: 2
+    heartbeat_period: "5s"
+    session_timeout: "20s"
+    fail_fast_timeout: "5s"
+    pool_size: 64
+    pool_ttl: 600
+    getty_session_param:
+      compress_encoding: false
+      tcp_no_delay: true
+      tcp_keep_alive: true
+      keep_alive_period: "120s"
+      tcp_r_buf_size: 262144
+      tcp_w_buf_size: 65536
+      pkg_rq_size: 1024
+      pkg_wq_size: 512
+      tcp_read_timeout: "1s"
+      tcp_write_timeout: "5s"
+      wait_timeout: "1s"
+      max_msg_len: 10240
+      session_name: "client"
+
+filter_conf:
+  hystrix:
+    configs:
+      "Default":
+        timeout : 1000
+        max_concurrent_requests : 25
+        sleep_window : 5000
+        error_percent_threshold : 50
+        request_volume_threshold: 20
+      "userp":
+        timeout: 2000
+        max_concurrent_requests: 512
+        sleep_window: 4000
+        error_percent_threshold: 35
+        request_volume_threshold: 6
+      "userp_m":
+        timeout : 1200
+        max_concurrent_requests : 512
+        sleep_window : 6000
+        error_percent_threshold : 60
+        request_volume_threshold: 16
+        error_whitelist: [".*exception.*"]
+    default: "Default"
+    services:
+      "com.ikurento.user.UserProvider":
+        service_config: "userp"
+        methods:
+          "GetUser": "userp_m"
+          "GetUser1": "userp_m"
\ No newline at end of file
diff --git a/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/test/log.yml b/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/test/log.yml
new file mode 100644
index 0000000000000000000000000000000000000000..f93d3c7fccadec845059460befb2e0b1076881e2
--- /dev/null
+++ b/examples/hystrixfilter/dubbo/with-hystrix-go-client/profiles/test/log.yml
@@ -0,0 +1,28 @@
+
+level: "info"
+development: false
+disableCaller: false
+disableStacktrace: true
+sampling:
+encoding: "console"
+
+# encoder
+encoderConfig:
+  messageKey: "message"
+  levelKey: "level"
+  timeKey: "time"
+  nameKey: "logger"
+  callerKey: "caller"
+  stacktraceKey: "stacktrace"
+  lineEnding: ""
+  levelEncoder: "capitalColor"
+  timeEncoder: "iso8601"
+  durationEncoder: "seconds"
+  callerEncoder: "short"
+  nameEncoder: ""
+
+outputPaths:
+  - "stderr"
+errorOutputPaths:
+  - "stderr"
+initialFields:
diff --git a/filter/impl/hystrix_filter.go b/filter/impl/hystrix_filter.go
new file mode 100644
index 0000000000000000000000000000000000000000..3fd9f87168616b69d5ec72460767890d6956c154
--- /dev/null
+++ b/filter/impl/hystrix_filter.go
@@ -0,0 +1,269 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package impl
+
+import (
+	"fmt"
+	"regexp"
+	"sync"
+)
+import (
+	"github.com/afex/hystrix-go/hystrix"
+	perrors "github.com/pkg/errors"
+	"gopkg.in/yaml.v2"
+)
+import (
+	"github.com/apache/dubbo-go/common/extension"
+	"github.com/apache/dubbo-go/common/logger"
+	"github.com/apache/dubbo-go/config"
+	"github.com/apache/dubbo-go/filter"
+	"github.com/apache/dubbo-go/protocol"
+)
+
+const (
+	HYSTRIX_CONSUMER = "hystrix_consumer"
+	HYSTRIX_PROVIDER = "hystrix_provider"
+	HYSTRIX          = "hystrix"
+)
+
+var (
+	confConsumer       = &HystrixFilterConfig{}
+	confProvider       = &HystrixFilterConfig{}
+	configLoadMutex    = sync.RWMutex{}
+	consumerConfigOnce sync.Once
+	providerConfigOnce sync.Once
+)
+
+//The filter in the server end of dubbo-go can't get the invoke result for now,
+//this filter ONLY works in CLIENT end (consumer side) temporarily
+//Only after the callService logic is integrated into the filter chain of server end can this filter be used,
+//which will be done soon
+func init() {
+	extension.SetFilter(HYSTRIX_CONSUMER, GetHystrixFilterConsumer)
+	extension.SetFilter(HYSTRIX_PROVIDER, GetHystrixFilterProvider)
+}
+
+type HystrixFilterError struct {
+	err           error
+	failByHystrix bool
+}
+
+func (hfError *HystrixFilterError) Error() string {
+	return hfError.err.Error()
+}
+
+func (hfError *HystrixFilterError) FailByHystrix() bool {
+	return hfError.failByHystrix
+}
+func NewHystrixFilterError(err error, failByHystrix bool) error {
+	return &HystrixFilterError{
+		err:           err,
+		failByHystrix: failByHystrix,
+	}
+}
+
+type HystrixFilter struct {
+	COrP     bool //true for consumer
+	res      map[string][]*regexp.Regexp
+	ifNewMap sync.Map
+}
+
+func (hf *HystrixFilter) Invoke(invoker protocol.Invoker, invocation protocol.Invocation) protocol.Result {
+
+	cmdName := fmt.Sprintf("%s&method=%s", invoker.GetUrl().Key(), invocation.MethodName())
+
+	// Do the configuration if the circuit breaker is created for the first time
+	if _, load := hf.ifNewMap.LoadOrStore(cmdName, true); !load {
+		configLoadMutex.Lock()
+		filterConf := getConfig(invoker.GetUrl().Service(), invocation.MethodName(), hf.COrP)
+		for _, ptn := range filterConf.Error {
+			reg, err := regexp.Compile(ptn)
+			if err != nil {
+				logger.Warnf("[Hystrix Filter]Errors occurred parsing error omit regexp: %s, %v", ptn, err)
+			} else {
+				if hf.res == nil {
+					hf.res = make(map[string][]*regexp.Regexp)
+				}
+				hf.res[invocation.MethodName()] = append(hf.res[invocation.MethodName()], reg)
+			}
+		}
+		hystrix.ConfigureCommand(cmdName, hystrix.CommandConfig{
+			Timeout:                filterConf.Timeout,
+			MaxConcurrentRequests:  filterConf.MaxConcurrentRequests,
+			SleepWindow:            filterConf.SleepWindow,
+			ErrorPercentThreshold:  filterConf.ErrorPercentThreshold,
+			RequestVolumeThreshold: filterConf.RequestVolumeThreshold,
+		})
+		configLoadMutex.Unlock()
+	}
+	configLoadMutex.RLock()
+	_, _, err := hystrix.GetCircuit(cmdName)
+	configLoadMutex.RUnlock()
+	if err != nil {
+		logger.Errorf("[Hystrix Filter]Errors occurred getting circuit for %s , will invoke without hystrix, error is: ", cmdName, err)
+		return invoker.Invoke(invocation)
+	}
+	logger.Infof("[Hystrix Filter]Using hystrix filter: %s", cmdName)
+	var result protocol.Result
+	_ = hystrix.Do(cmdName, func() error {
+		result = invoker.Invoke(invocation)
+		err := result.Error()
+		if err != nil {
+			result.SetError(NewHystrixFilterError(err, false))
+			for _, reg := range hf.res[invocation.MethodName()] {
+				if reg.MatchString(err.Error()) {
+					logger.Debugf("[Hystrix Filter]Error in invocation but omitted in circuit breaker: %v; %s", err, cmdName)
+					return nil
+				}
+			}
+		}
+		return err
+	}, func(err error) error {
+		//Return error and if it is caused by hystrix logic, so that it can be handled by previous filters.
+		_, ok := err.(hystrix.CircuitError)
+		logger.Debugf("[Hystrix Filter]Hystrix health check counted, error is: %v, failed by hystrix: %v; %s", err, ok, cmdName)
+		result = &protocol.RPCResult{}
+		result.SetResult(nil)
+		result.SetError(NewHystrixFilterError(err, ok))
+		return err
+	})
+	return result
+}
+
+func (hf *HystrixFilter) OnResponse(result protocol.Result, invoker protocol.Invoker, invocation protocol.Invocation) protocol.Result {
+	return result
+}
+func GetHystrixFilterConsumer() filter.Filter {
+	//When first called, load the config in
+	consumerConfigOnce.Do(func() {
+		if err := initHystrixConfigConsumer(); err != nil {
+			logger.Warnf("[Hystrix Filter]Config load failed for consumer, error is: %v , will use default", err)
+		}
+	})
+	return &HystrixFilter{COrP: true}
+}
+
+func GetHystrixFilterProvider() filter.Filter {
+	providerConfigOnce.Do(func() {
+		if err := initHystrixConfigProvider(); err != nil {
+			logger.Warnf("[Hystrix Filter]Config load failed for provider, error is: %v , will use default", err)
+		}
+	})
+	return &HystrixFilter{COrP: false}
+}
+
+func getConfig(service string, method string, cOrP bool) CommandConfigWithError {
+	//Find method level config
+	var conf *HystrixFilterConfig
+	if cOrP {
+		conf = confConsumer
+	} else {
+		conf = confProvider
+	}
+	getConf := conf.Configs[conf.Services[service].Methods[method]]
+	if getConf != nil {
+		logger.Infof("[Hystrix Filter]Found method-level config for %s - %s", service, method)
+		return *getConf
+	}
+	//Find service level config
+	getConf = conf.Configs[conf.Services[service].ServiceConfig]
+	if getConf != nil {
+		logger.Infof("[Hystrix Filter]Found service-level config for %s - %s", service, method)
+		return *getConf
+	}
+	//Find default config
+	getConf = conf.Configs[conf.Default]
+	if getConf != nil {
+		logger.Infof("[Hystrix Filter]Found global default config for %s - %s", service, method)
+		return *getConf
+	}
+	getConf = &CommandConfigWithError{}
+	logger.Infof("[Hystrix Filter]No config found for %s - %s, using default", service, method)
+	return *getConf
+
+}
+
+func initHystrixConfigConsumer() error {
+	if config.GetConsumerConfig().FilterConf == nil {
+		return perrors.Errorf("no config for hystrix")
+	}
+	filterConfig := config.GetConsumerConfig().FilterConf.(map[interface{}]interface{})[HYSTRIX]
+	if filterConfig == nil {
+		return perrors.Errorf("no config for hystrix")
+	}
+	hystrixConfByte, err := yaml.Marshal(filterConfig)
+	if err != nil {
+		return err
+	}
+	err = yaml.Unmarshal(hystrixConfByte, confConsumer)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+func initHystrixConfigProvider() error {
+	if config.GetProviderConfig().FilterConf == nil {
+		return perrors.Errorf("no config for hystrix")
+	}
+	filterConfig := config.GetConsumerConfig().FilterConf.(map[interface{}]interface{})[HYSTRIX]
+	if filterConfig == nil {
+		return perrors.Errorf("no config for hystrix")
+	}
+	hystrixConfByte, err := yaml.Marshal(filterConfig)
+	if err != nil {
+		return err
+	}
+	err = yaml.Unmarshal(hystrixConfByte, confProvider)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+//For sake of dynamic config
+//func RefreshHystrix() error {
+//	conf = &HystrixFilterConfig{}
+//	hystrix.Flush()
+//	return initHystrixConfig()
+//}
+
+type CommandConfigWithError struct {
+	Timeout                int      `yaml:"timeout"`
+	MaxConcurrentRequests  int      `yaml:"max_concurrent_requests"`
+	RequestVolumeThreshold int      `yaml:"request_volume_threshold"`
+	SleepWindow            int      `yaml:"sleep_window"`
+	ErrorPercentThreshold  int      `yaml:"error_percent_threshold"`
+	Error                  []string `yaml:"error_whitelist"`
+}
+
+//Config:
+//- Timeout: how long to wait for command to complete, in milliseconds
+//- MaxConcurrentRequests: how many commands of the same type can run at the same time
+//- RequestVolumeThreshold: the minimum number of requests needed before a circuit can be tripped due to health
+//- SleepWindow: how long, in milliseconds, to wait after a circuit opens before testing for recovery
+//- ErrorPercentThreshold: it causes circuits to open once the rolling measure of errors exceeds this percent of requests
+//See hystrix doc
+
+type HystrixFilterConfig struct {
+	Configs  map[string]*CommandConfigWithError
+	Default  string
+	Services map[string]ServiceHystrixConfig
+}
+type ServiceHystrixConfig struct {
+	ServiceConfig string `yaml:"service_config"`
+	Methods       map[string]string
+}
diff --git a/filter/impl/hystrix_filter_test.go b/filter/impl/hystrix_filter_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..d3a5183ede25d8a325bb1c73020edddd2ffbc638
--- /dev/null
+++ b/filter/impl/hystrix_filter_test.go
@@ -0,0 +1,217 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package impl
+
+import (
+	"regexp"
+	"testing"
+)
+import (
+	"github.com/afex/hystrix-go/hystrix"
+	"github.com/pkg/errors"
+	"github.com/stretchr/testify/assert"
+)
+import (
+	"github.com/apache/dubbo-go/protocol"
+	"github.com/apache/dubbo-go/protocol/invocation"
+)
+
+func init() {
+	mockInitHystrixConfig()
+}
+
+func TestNewHystrixFilterError(t *testing.T) {
+	get := NewHystrixFilterError(errors.New("test"), true)
+	assert.True(t, get.(*HystrixFilterError).FailByHystrix())
+	assert.Equal(t, "test", get.Error())
+}
+
+func mockInitHystrixConfig() {
+	//Mock config
+	confConsumer = &HystrixFilterConfig{
+		make(map[string]*CommandConfigWithError),
+		"Default",
+		make(map[string]ServiceHystrixConfig),
+	}
+	confConsumer.Configs["Default"] = &CommandConfigWithError{
+		Timeout:                1000,
+		MaxConcurrentRequests:  600,
+		RequestVolumeThreshold: 5,
+		SleepWindow:            5000,
+		ErrorPercentThreshold:  5,
+		Error:                  nil,
+	}
+	confConsumer.Configs["userp"] = &CommandConfigWithError{
+		Timeout:                2000,
+		MaxConcurrentRequests:  64,
+		RequestVolumeThreshold: 15,
+		SleepWindow:            4000,
+		ErrorPercentThreshold:  45,
+		Error:                  nil,
+	}
+	confConsumer.Configs["userp_m"] = &CommandConfigWithError{
+		Timeout:                1200,
+		MaxConcurrentRequests:  64,
+		RequestVolumeThreshold: 5,
+		SleepWindow:            6000,
+		ErrorPercentThreshold:  60,
+		Error: []string{
+			"exception",
+		},
+	}
+	confConsumer.Services["com.ikurento.user.UserProvider"] = ServiceHystrixConfig{
+		"userp",
+		map[string]string{
+			"GetUser": "userp_m",
+		},
+	}
+
+}
+
+func TestGetHystrixFilter(t *testing.T) {
+	filterGot := GetHystrixFilterConsumer()
+	assert.NotNil(t, filterGot)
+}
+
+func TestGetConfig_1(t *testing.T) {
+	mockInitHystrixConfig()
+	configGot := getConfig("com.ikurento.user.UserProvider", "GetUser", true)
+	assert.NotNil(t, configGot)
+	assert.Equal(t, 1200, configGot.Timeout)
+	assert.Equal(t, 64, configGot.MaxConcurrentRequests)
+	assert.Equal(t, 6000, configGot.SleepWindow)
+	assert.Equal(t, 60, configGot.ErrorPercentThreshold)
+	assert.Equal(t, 5, configGot.RequestVolumeThreshold)
+}
+
+func TestGetConfig_2(t *testing.T) {
+	mockInitHystrixConfig()
+	configGot := getConfig("com.ikurento.user.UserProvider", "GetUser0", true)
+	assert.NotNil(t, configGot)
+	assert.Equal(t, 2000, configGot.Timeout)
+	assert.Equal(t, 64, configGot.MaxConcurrentRequests)
+	assert.Equal(t, 4000, configGot.SleepWindow)
+	assert.Equal(t, 45, configGot.ErrorPercentThreshold)
+	assert.Equal(t, 15, configGot.RequestVolumeThreshold)
+}
+
+func TestGetConfig_3(t *testing.T) {
+	mockInitHystrixConfig()
+	//This should use default
+	configGot := getConfig("Mock.Service", "GetMock", true)
+	assert.NotNil(t, configGot)
+	assert.Equal(t, 1000, configGot.Timeout)
+	assert.Equal(t, 600, configGot.MaxConcurrentRequests)
+	assert.Equal(t, 5000, configGot.SleepWindow)
+	assert.Equal(t, 5, configGot.ErrorPercentThreshold)
+	assert.Equal(t, 5, configGot.RequestVolumeThreshold)
+}
+
+type testMockSuccessInvoker struct {
+	protocol.BaseInvoker
+}
+
+func (iv *testMockSuccessInvoker) Invoke(invocation protocol.Invocation) protocol.Result {
+	return &protocol.RPCResult{
+		Rest: "Sucess",
+		Err:  nil,
+	}
+}
+
+type testMockFailInvoker struct {
+	protocol.BaseInvoker
+}
+
+func (iv *testMockFailInvoker) Invoke(invocation protocol.Invocation) protocol.Result {
+	return &protocol.RPCResult{
+		Err: errors.Errorf("exception"),
+	}
+}
+
+func TestHystrixFilter_Invoke_Success(t *testing.T) {
+	hf := &HystrixFilter{}
+	result := hf.Invoke(&testMockSuccessInvoker{}, &invocation.RPCInvocation{})
+	assert.NotNil(t, result)
+	assert.NoError(t, result.Error())
+	assert.NotNil(t, result.Result())
+}
+
+func TestHystrixFilter_Invoke_Fail(t *testing.T) {
+	hf := &HystrixFilter{}
+	result := hf.Invoke(&testMockFailInvoker{}, &invocation.RPCInvocation{})
+	assert.NotNil(t, result)
+	assert.Error(t, result.Error())
+}
+
+func TestHystricFilter_Invoke_CircuitBreak(t *testing.T) {
+	mockInitHystrixConfig()
+	hystrix.Flush()
+	hf := &HystrixFilter{COrP: true}
+	resChan := make(chan protocol.Result, 50)
+	for i := 0; i < 50; i++ {
+		go func() {
+			result := hf.Invoke(&testMockFailInvoker{}, &invocation.RPCInvocation{})
+			resChan <- result
+		}()
+	}
+	//This can not always pass the test when on travis due to concurrency, you can uncomment the code below and test it locally
+
+	//var lastRest bool
+	//for i := 0; i < 50; i++ {
+	//	lastRest = (<-resChan).Error().(*HystrixFilterError).FailByHystrix()
+	//}
+	//Normally the last result should be true, which means the circuit has been opened
+	//
+	//assert.True(t, lastRest)
+
+}
+
+func TestHystricFilter_Invoke_CircuitBreak_Omit_Exception(t *testing.T) {
+	mockInitHystrixConfig()
+	hystrix.Flush()
+	reg, _ := regexp.Compile(".*exception.*")
+	regs := []*regexp.Regexp{reg}
+	hf := &HystrixFilter{res: map[string][]*regexp.Regexp{"": regs}, COrP: true}
+	resChan := make(chan protocol.Result, 50)
+	for i := 0; i < 50; i++ {
+		go func() {
+			result := hf.Invoke(&testMockFailInvoker{}, &invocation.RPCInvocation{})
+			resChan <- result
+		}()
+	}
+	//This can not always pass the test when on travis due to concurrency, you can uncomment the code below and test it locally
+
+	//time.Sleep(time.Second * 6)
+	//var lastRest bool
+	//for i := 0; i < 50; i++ {
+	//	lastRest = (<-resChan).Error().(*HystrixFilterError).FailByHystrix()
+	//}
+	//
+	//assert.False(t, lastRest)
+
+}
+
+func TestGetHystrixFilterConsumer(t *testing.T) {
+	get := GetHystrixFilterConsumer()
+	assert.NotNil(t, get)
+	assert.True(t, get.(*HystrixFilter).COrP)
+}
+func TestGetHystrixFilterProvider(t *testing.T) {
+	get := GetHystrixFilterProvider()
+	assert.NotNil(t, get)
+	assert.False(t, get.(*HystrixFilter).COrP)
+}
diff --git a/go.mod b/go.mod
index 52785aa5f5cfbc8158a49c90a369d179a332f5f0..f88e82a6d2f1248af44444078a3fd89d9b46e84e 100644
--- a/go.mod
+++ b/go.mod
@@ -2,6 +2,7 @@ module github.com/apache/dubbo-go
 
 require (
 	github.com/Workiva/go-datastructures v1.0.50
+	github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5
 	github.com/aliyun/alibaba-cloud-sdk-go v0.0.0-20190802083043-4cd0c391755e // indirect
 	github.com/apache/dubbo-go-hessian2 v1.2.5-0.20190731020727-1697039810c8
 	github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23 // indirect
@@ -10,18 +11,18 @@ require (
 	github.com/coreos/go-semver v0.3.0 // indirect
 	github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f // indirect
 	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f // indirect
-	github.com/dgrijalva/jwt-go v3.2.0+incompatible // indirect
 	github.com/dubbogo/getty v1.2.2
 	github.com/dubbogo/gost v1.1.1
 	github.com/fastly/go-utils v0.0.0-20180712184237-d95a45783239 // indirect
 	github.com/go-errors/errors v1.0.1 // indirect
-	github.com/gogo/protobuf v1.2.1 // indirect
 	github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6 // indirect
 	github.com/golang/mock v1.3.1
 	github.com/google/btree v1.0.0 // indirect
 	github.com/grpc-ecosystem/go-grpc-middleware v1.0.0 // indirect
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway v1.9.5 // indirect
+	github.com/hashicorp/consul v1.5.3
+	github.com/hashicorp/consul/api v1.1.0
 	github.com/jehiah/go-strftime v0.0.0-20171201141054-1d33003b3869 // indirect
 	github.com/jinzhu/copier v0.0.0-20190625015134-976e0346caa8
 	github.com/jonboulle/clockwork v0.1.0 // indirect
@@ -29,11 +30,13 @@ require (
 	github.com/lestrrat/go-file-rotatelogs v0.0.0-20180223000712-d3151e2a480f // indirect
 	github.com/lestrrat/go-strftime v0.0.0-20180220042222-ba3bf9c1d042 // indirect
 	github.com/magiconair/properties v1.8.1
-	github.com/modern-go/reflect2 v1.0.1 // indirect
+	github.com/mitchellh/copystructure v1.0.0
+	github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826
 	github.com/nacos-group/nacos-sdk-go v0.0.0-20190723125407-0242d42e3dbb
 	github.com/pkg/errors v0.8.1
 	github.com/prometheus/client_golang v1.1.0 // indirect
 	github.com/samuel/go-zookeeper v0.0.0-20180130194729-c4fab1ac1bec
+	github.com/smartystreets/goconvey v0.0.0-20190710185942-9d28bd7c0945 // indirect
 	github.com/soheilhy/cmux v0.1.4 // indirect
 	github.com/stretchr/testify v1.3.0
 	github.com/tebeka/strftime v0.1.3 // indirect
diff --git a/go.sum b/go.sum
index e70701ff96cccb0026edaa36135f3ed785863159..0ac707c33b60e135832c1a5adfdd6b3039129c98 100644
--- a/go.sum
+++ b/go.sum
@@ -1,7 +1,35 @@
+cloud.google.com/go v0.26.0 h1:e0WKqKTd5BnrG8aKH3J3h+QvEIQtSUcf2n5UZ5ZgLtQ=
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/Azure/azure-sdk-for-go v16.0.0+incompatible h1:gr1qKY/Ll72VjFTZmaBwRK1yQHAxCnV25ekOKroc9ws=
+github.com/Azure/azure-sdk-for-go v16.0.0+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc=
+github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 h1:w+iIsaOQNcT7OZ575w+acHgRric5iCyQh+xv+KJ4HB8=
+github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
+github.com/Azure/go-autorest v10.7.0+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24=
+github.com/Azure/go-autorest v10.15.3+incompatible h1:nhKI/bvazIs3C3TFGoSqKY6hZ8f5od5mb5/UcS6HVIY=
+github.com/Azure/go-autorest v10.15.3+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/DataDog/datadog-go v2.2.0+incompatible h1:V5BKkxACZLjzHjSgBbr2gvLA2Ae49yhc6CSY7MLy5k4=
+github.com/DataDog/datadog-go v2.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
+github.com/Jeffail/gabs v1.1.0 h1:kw5zCcl9tlJNHTDme7qbi21fDHZmXrnjMoXos3Jw/NI=
+github.com/Jeffail/gabs v1.1.0/go.mod h1:6xMvQMK4k33lb7GUUpaAPh6nKMmemQeg5d4gn7/bOXc=
+github.com/Microsoft/go-winio v0.4.3 h1:M3NHMuPgMSUPdE5epwNUHlRPSVzHs8HpRTrVXhR0myo=
+github.com/Microsoft/go-winio v0.4.3/go.mod h1:VhR8bwka0BXejwEJY73c50VrPtXAaKcyvVC4A4RozmA=
+github.com/NYTimes/gziphandler v1.0.1 h1:iLrQrdwjDd52kHDA5op2UBJFjmOb9g+7scBan4RN8F0=
+github.com/NYTimes/gziphandler v1.0.1/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
+github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5 h1:TngWCqHvy9oXAN6lEVMRuU21PR1EtLVZJmdB18Gu3Rw=
+github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5/go.mod h1:lmUJ/7eu/Q8D7ML55dXQrVaamCz2vxCfdQBasLZfHKk=
+github.com/SAP/go-hdb v0.12.0 h1:5hBQZ2jjyZ268qjDmoDZJuCyLzR6oRLI60eYzmTW9m4=
+github.com/SAP/go-hdb v0.12.0/go.mod h1:etBT+FAi1t5k3K3tf5vQTnosgYmhDkRi8jEnQqCnxF0=
+github.com/SermoDigital/jose v0.0.0-20180104203859-803625baeddc h1:LkkwnbY+S8WmwkWq1SVyRWMH9nYWO1P5XN3OD1tts/w=
+github.com/SermoDigital/jose v0.0.0-20180104203859-803625baeddc/go.mod h1:ARgCUhI1MHQH+ONky/PAtmVHQrP5JlGY0F3poXOp/fA=
+github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6 h1:fLjPD/aNc3UIOA6tDi6QXUemppXK3P9BI7mr2hd6gx8=
+github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
 github.com/Workiva/go-datastructures v1.0.50 h1:slDmfW6KCHcC7U+LP3DDBbm4fqTwZGn1beOFPfGaLvo=
 github.com/Workiva/go-datastructures v1.0.50/go.mod h1:Z+F2Rca0qCsVYDS8z7bAGm8f3UkzuWYS/oBZz5a7VVA=
+github.com/abdullin/seq v0.0.0-20160510034733-d5467c17e7af h1:DBNMBMuMiWYu0b+8KMJuWmfCkcxl09JwdlqwDZZ6U14=
+github.com/abdullin/seq v0.0.0-20160510034733-d5467c17e7af/go.mod h1:5Jv4cbFiHJMsVxt52+i0Ha45fjshj6wxYr1r19tB9bw=
+github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5 h1:rFw4nCn9iMW+Vajsk51NtYIcwSTkXr+JGrMd36kTDJw=
+github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5/go.mod h1:SkGFH1ia65gfNATL8TAiHDNxPzPdmEL5uirI2Uyuz6c=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/aliyun/alibaba-cloud-sdk-go v0.0.0-20190802083043-4cd0c391755e h1:MSuLXx/mveDbpDNhVrcWTMeV4lbYWKcyO4rH+jAxmX0=
@@ -9,14 +37,44 @@ github.com/aliyun/alibaba-cloud-sdk-go v0.0.0-20190802083043-4cd0c391755e/go.mod
 github.com/aliyun/aliyun-oss-go-sdk v0.0.0-20190307165228-86c17b95fcd5/go.mod h1:T/Aws4fEfogEE9v+HPhhw+CntffsBHJ8nXQCwKr0/g8=
 github.com/apache/dubbo-go-hessian2 v1.2.5-0.20190731020727-1697039810c8 h1:7zJlM+8bpCAUhv03TZnXkT4MLlLWng1s7An8CLuN73E=
 github.com/apache/dubbo-go-hessian2 v1.2.5-0.20190731020727-1697039810c8/go.mod h1:LWnndnrFXZmJLAzoyNAPNHSIJ1KOHVkTSsHgC3YYWlo=
+github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e h1:QEF07wC0T1rKkctt1RINW/+RMTVmiwxETico2l3gxJA=
+github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
+github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da h1:8GUt8eRujhVEGZFFEjBj46YV4rDjvGrNxb0KMWYkL2I=
+github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
+github.com/armon/go-metrics v0.0.0-20190430140413-ec5e00d3c878 h1:EFSB7Zo9Eg91v7MJPVsifUysc/wPdN+NOnVe6bWbdBM=
+github.com/armon/go-metrics v0.0.0-20190430140413-ec5e00d3c878/go.mod h1:3AMJUQhVx52RsWOnlkpikZr01T/yAVN2gn0861vByNg=
+github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310 h1:BUAU3CGlLvorLI26FmByPp2eC2qla6E1Tw+scpcg/to=
+github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
+github.com/asaskevich/govalidator v0.0.0-20180319081651-7d2e70ef918f h1:/8NcnxL60YFll4ehCwibKotx0BR9v2ND40fomga8qDs=
+github.com/asaskevich/govalidator v0.0.0-20180319081651-7d2e70ef918f/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
+github.com/aws/aws-sdk-go v1.15.24 h1:xLAdTA/ore6xdPAljzZRed7IGqQgC+nY+ERS5vaj4Ro=
+github.com/aws/aws-sdk-go v1.15.24/go.mod h1:mFuSZ37Z9YOHbQEwBWztmVzqXrEkub65tZoCYDt7FT0=
 github.com/baiyubin/aliyun-sts-go-sdk v0.0.0-20180326062324-cfa1a18b161f/go.mod h1:AuiFmCCPBSrqvVMvuqFuk0qogytodnVFVSN5CeJB8Gc=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
+github.com/bgentry/speakeasy v0.1.0 h1:ByYyxL9InA1OWqxJqqp2A5pYHUrCiAL6K3J+LKSsQkY=
+github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
+github.com/bitly/go-hostpool v0.0.0-20171023180738-a3a6125de932 h1:mXoPYz/Ul5HYEDvkta6I8/rnYM5gSdSV2tJ6XbZuEtY=
+github.com/bitly/go-hostpool v0.0.0-20171023180738-a3a6125de932/go.mod h1:NOuUCSz6Q9T7+igc/hlvDOUdtWKryOrtFyIVABv/p7k=
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 github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 h1:eY9dn8+vbi4tKz5Qo6v2eYzo7kUS51QINcR5jNpbZS8=
 github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
 go.etcd.io/bbolt v1.3.3 h1:MUGmc65QhB3pIlaQ5bB4LwqSj6GIonVJXpZiaKNyaKk=
@@ -178,55 +474,103 @@ go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/
 go.uber.org/zap v1.10.0 h1:ORx85nbTijNz8ljznvCMR1ZBIPKFn3jQrag10X2AsuM=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
+golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
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 golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
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 golang.org/x/net v0.0.0-20181220203305-927f97764cc3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190320064053-1272bf9dcd53/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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 golang.org/x/net v0.0.0-20190613194153-d28f0bde5980 h1:dfGZHvZk057jK2MCeWus/TowKpJ8y4AmooUzdBSR9GU=
 golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
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 google.golang.org/grpc v1.22.1 h1:/7cs52RnTJmD43s3uxzlq2U7nqVTd/37viQwMrMNlOM=
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+k8s.io/client-go v8.0.0+incompatible/go.mod h1:7vJpHMYJwNQCWgzmNV+VYUl1zCObLyodBc8nIyt8L5s=
diff --git a/protocol/dubbo/pool.go b/protocol/dubbo/pool.go
index 546a5b335aee3e71a6e00e49888710edb20c694a..ecd57e466a01b361a429cfd7d6eef4a3345574df 100644
--- a/protocol/dubbo/pool.go
+++ b/protocol/dubbo/pool.go
@@ -275,6 +275,7 @@ func (p *gettyRPCClientPool) close() {
 func (p *gettyRPCClientPool) getGettyRpcClient(protocol, addr string) (*gettyRPCClient, error) {
 
 	p.Lock()
+	defer p.Unlock()
 	if p.conns == nil {
 		return nil, errClientPoolClosed
 	}
@@ -290,12 +291,9 @@ func (p *gettyRPCClientPool) getGettyRpcClient(protocol, addr string) (*gettyRPC
 			continue
 		}
 		conn.created = now //update created time
-
-		p.Unlock()
 		return conn, nil
 	}
 	// create new conn
-	p.Unlock()
 	return newGettyRPCClientConn(p, protocol, addr)
 }
 
diff --git a/protocol/jsonrpc/http.go b/protocol/jsonrpc/http.go
index 46e2da06b77c070cf15ff6ee6b4781c453022747..b64a3a344e95164b8f49556cdc155bf34642a83b 100644
--- a/protocol/jsonrpc/http.go
+++ b/protocol/jsonrpc/http.go
@@ -146,7 +146,6 @@ func (c *HTTPClient) Call(ctx context.Context, service common.URL, req *Request,
 
 // !!The high level of complexity and the likelihood that the fasthttp client has not been extensively used
 // in production means that you would need to expect a very large benefit to justify the adoption of fasthttp today.
-// from: http://big-elephants.com/2016-12/fasthttp-client/
 func (c *HTTPClient) Do(addr, path string, httpHeader http.Header, body []byte) ([]byte, error) {
 	u := url.URL{Host: strings.TrimSuffix(addr, ":"), Path: path}
 	httpReq, err := http.NewRequest("POST", u.String(), bytes.NewBuffer(body))
diff --git a/protocol/protocolwrapper/protocol_filter_wrapper_test.go b/protocol/protocolwrapper/protocol_filter_wrapper_test.go
index 8a332490f71ead601d151fe5e27390eadcc1cbd8..98bd206325ffd38a325b667f7f0bc2684bbf626f 100644
--- a/protocol/protocolwrapper/protocol_filter_wrapper_test.go
+++ b/protocol/protocolwrapper/protocol_filter_wrapper_test.go
@@ -30,7 +30,9 @@ import (
 	"github.com/apache/dubbo-go/common"
 	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/common/extension"
-	"github.com/apache/dubbo-go/filter/impl"
+	"github.com/apache/dubbo-go/common/logger"
+	"github.com/apache/dubbo-go/filter"
+	//"github.com/apache/dubbo-go/filter/impl"
 	"github.com/apache/dubbo-go/protocol"
 )
 
@@ -40,7 +42,7 @@ func TestProtocolFilterWrapper_Export(t *testing.T) {
 
 	u := common.NewURLWithOptions(
 		common.WithParams(url.Values{}),
-		common.WithParamsValue(constant.SERVICE_FILTER_KEY, impl.ECHO))
+		common.WithParamsValue(constant.SERVICE_FILTER_KEY, "echo"))
 	exporter := filtProto.Export(protocol.NewBaseInvoker(*u))
 	_, ok := exporter.GetInvoker().(*FilterInvoker)
 	assert.True(t, ok)
@@ -52,8 +54,35 @@ func TestProtocolFilterWrapper_Refer(t *testing.T) {
 
 	u := common.NewURLWithOptions(
 		common.WithParams(url.Values{}),
-		common.WithParamsValue(constant.REFERENCE_FILTER_KEY, impl.ECHO))
+		common.WithParamsValue(constant.REFERENCE_FILTER_KEY, "echo"))
 	invoker := filtProto.Refer(*u)
 	_, ok := invoker.(*FilterInvoker)
 	assert.True(t, ok)
 }
+
+//the same as echo filter, for test
+func init() {
+	extension.SetFilter("echo", GetFilter)
+}
+
+type EchoFilterForTest struct{}
+
+func (ef *EchoFilterForTest) Invoke(invoker protocol.Invoker, invocation protocol.Invocation) protocol.Result {
+	logger.Infof("invoking echo filter.")
+	logger.Debugf("%v,%v", invocation.MethodName(), len(invocation.Arguments()))
+	if invocation.MethodName() == constant.ECHO && len(invocation.Arguments()) == 1 {
+		return &protocol.RPCResult{
+			Rest: invocation.Arguments()[0],
+		}
+	}
+
+	return invoker.Invoke(invocation)
+}
+
+func (ef *EchoFilterForTest) OnResponse(result protocol.Result, invoker protocol.Invoker, invocation protocol.Invocation) protocol.Result {
+	return result
+}
+
+func GetFilter() filter.Filter {
+	return &EchoFilterForTest{}
+}
diff --git a/protocol/RpcStatus.go b/protocol/rpc_status.go
similarity index 98%
rename from protocol/RpcStatus.go
rename to protocol/rpc_status.go
index 78796b6beaf24dac33d7e0210703a9027f9fe568..3a8bfbc87f285e0e86269d44c47d6771566d97b1 100644
--- a/protocol/RpcStatus.go
+++ b/protocol/rpc_status.go
@@ -15,7 +15,6 @@
  * limitations under the License.
  */
 
-// @author yiji@apache.org
 package protocol
 
 import (
diff --git a/registry/base_configuration_listener.go b/registry/base_configuration_listener.go
index f209049877900edfb3739f34be037354654dda0d..791996340d6b34e024a2f21554d48bd38ace52cd 100644
--- a/registry/base_configuration_listener.go
+++ b/registry/base_configuration_listener.go
@@ -21,16 +21,22 @@ type BaseConfigurationListener struct {
 func (bcl *BaseConfigurationListener) Configurators() []config_center.Configurator {
 	return bcl.configurators
 }
-func (bcl *BaseConfigurationListener) InitWith(key string, listener config_center.ConfigurationListener, f func(url *common.URL) config_center.Configurator) error {
+func (bcl *BaseConfigurationListener) InitWith(key string, listener config_center.ConfigurationListener, f func(url *common.URL) config_center.Configurator) {
 	bcl.dynamicConfiguration = config.GetEnvInstance().GetDynamicConfiguration()
+	if bcl.dynamicConfiguration == nil {
+		//set configurators to empty
+		bcl.configurators = []config_center.Configurator{}
+		return
+	}
 	bcl.defaultConfiguratorFunc = f
 	bcl.dynamicConfiguration.AddListener(key, listener)
 	if rawConfig, err := bcl.dynamicConfiguration.GetConfig(key, config_center.WithGroup(constant.DUBBO)); err != nil {
-		return err
+		//set configurators to empty
+		bcl.configurators = []config_center.Configurator{}
+		return
 	} else if len(rawConfig) > 0 {
 		bcl.genConfiguratorFromRawRule(rawConfig)
 	}
-	return nil
 }
 
 func (bcl *BaseConfigurationListener) Process(event *config_center.ConfigChangeEvent) {
diff --git a/registry/consul/listener.go b/registry/consul/listener.go
new file mode 100644
index 0000000000000000000000000000000000000000..b047a4c08c9f6c809ed3dca8bd0d06ceaa576cae
--- /dev/null
+++ b/registry/consul/listener.go
@@ -0,0 +1,206 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package consul
+
+import (
+	"sync"
+)
+
+import (
+	consul "github.com/hashicorp/consul/api"
+	"github.com/hashicorp/consul/api/watch"
+	perrors "github.com/pkg/errors"
+)
+
+import (
+	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/logger"
+	"github.com/apache/dubbo-go/registry"
+	"github.com/apache/dubbo-go/remoting"
+)
+
+// Consul listener wraps the consul watcher, to
+// listen the service information change in consul
+// registry.
+type consulListener struct {
+	// Registry url.
+	registryUrl common.URL
+
+	// Consumer url.
+	consumerUrl common.URL
+
+	// Consul watcher.
+	plan *watch.Plan
+
+	// Most recent service urls return by
+	// watcher.
+	urls []common.URL
+
+	// All service information changes will
+	// be wrapped into ServiceEvent, and be
+	// sent into eventCh. Then listener's
+	// Next method will get event from eventCh,
+	// and return to upstream.
+	eventCh chan *registry.ServiceEvent
+
+	// All errors, happening in the listening
+	// period, will be caught and send into
+	// errCh. Then listener's Next method will
+	// get error from errCh, and return to
+	// upstream.
+	errCh chan error
+
+	// Done field represents whether consul
+	// listener has been closed. When closing
+	// listener, this field will be closed,
+	// and will notify consul watcher to close.
+	done chan struct{}
+
+	// After listener notifies consul watcher
+	// to close, listener will call wg.wait to
+	// make sure that consul watcher is closed
+	// before the listener closes.
+	wg sync.WaitGroup
+}
+
+func newConsulListener(registryUrl common.URL, consumerUrl common.URL) (*consulListener, error) {
+	params := make(map[string]interface{}, 8)
+	params["type"] = "service"
+	params["service"] = consumerUrl.Service()
+	params["tag"] = "dubbo"
+	params["passingonly"] = true
+	plan, err := watch.Parse(params)
+	if err != nil {
+		return nil, err
+	}
+
+	listener := &consulListener{
+		registryUrl: registryUrl,
+		consumerUrl: consumerUrl,
+		plan:        plan,
+		urls:        make([]common.URL, 0, 8),
+		eventCh:     make(chan *registry.ServiceEvent, 32),
+		errCh:       make(chan error, 32),
+		done:        make(chan struct{}),
+	}
+
+	// Set handler to consul watcher, and
+	// make watcher begin to watch service
+	// information change.
+	listener.plan.Handler = listener.handler
+	listener.wg.Add(1)
+	go listener.run()
+	return listener, nil
+}
+
+// Wrap the consul watcher run api. There are three
+// conditions that will finish the run:
+//   - close done
+//   - call plan.Stop
+//   - close eventCh and errCh
+// If run meets first two conditions, it will close
+// gracefully. However, if run meets the last condition,
+// run will close with panic, so use recover to cover
+// this case.
+func (l *consulListener) run() {
+	defer func() {
+		p := recover()
+		if p != nil {
+			logger.Warnf("consul listener finish with panic %v", p)
+		}
+		l.wg.Done()
+	}()
+
+	for {
+		select {
+		case <-l.done:
+			return
+		default:
+			err := l.plan.Run(l.registryUrl.Location)
+			if err != nil {
+				l.errCh <- err
+			}
+		}
+	}
+}
+
+func (l *consulListener) handler(idx uint64, raw interface{}) {
+	var (
+		service *consul.ServiceEntry
+		event   *registry.ServiceEvent
+		url     common.URL
+		ok      bool
+		err     error
+	)
+
+	services, ok := raw.([]*consul.ServiceEntry)
+	if !ok {
+		err = perrors.New("handler get non ServiceEntry type parameter")
+		l.errCh <- err
+		return
+	}
+	newUrls := make([]common.URL, 0, 8)
+	events := make([]*registry.ServiceEvent, 0, 8)
+
+	for _, service = range services {
+		url, err = retrieveURL(service)
+		if err != nil {
+			l.errCh <- err
+			return
+		}
+		newUrls = append(newUrls, url)
+	}
+
+	for _, url = range l.urls {
+		ok = in(url, newUrls)
+		if !ok {
+			event := &registry.ServiceEvent{Action: remoting.EventTypeDel, Service: url}
+			events = append(events, event)
+		}
+	}
+
+	for _, url = range newUrls {
+		ok = in(url, l.urls)
+		if !ok {
+			event := &registry.ServiceEvent{Action: remoting.EventTypeAdd, Service: url}
+			events = append(events, event)
+		}
+	}
+
+	l.urls = newUrls
+	for _, event = range events {
+		l.eventCh <- event
+	}
+}
+
+func (l *consulListener) Next() (*registry.ServiceEvent, error) {
+	select {
+	case event := <-l.eventCh:
+		return event, nil
+	case err := <-l.errCh:
+		return nil, err
+	}
+}
+
+func (l *consulListener) Close() {
+	close(l.done)
+	l.plan.Stop()
+	close(l.eventCh)
+	close(l.errCh)
+	l.wg.Wait()
+}
diff --git a/registry/consul/listener_test.go b/registry/consul/listener_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..7dccbaa9f590e08d9aab539789b8348999672fde
--- /dev/null
+++ b/registry/consul/listener_test.go
@@ -0,0 +1,33 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package consul
+
+import (
+	"github.com/stretchr/testify/assert"
+)
+
+import (
+	"github.com/apache/dubbo-go/remoting"
+)
+
+func (suite *consulRegistryTestSuite) testListener(action remoting.EventType) {
+	event, err := suite.listener.Next()
+	assert.NoError(suite.t, err)
+	assert.Equal(suite.t, action, event.Action)
+	assert.True(suite.t, suite.providerUrl.URLEqual(event.Service))
+}
diff --git a/registry/consul/registry.go b/registry/consul/registry.go
new file mode 100644
index 0000000000000000000000000000000000000000..d2e69ecec31ba796ce8e6198a0b64729f4d92f6e
--- /dev/null
+++ b/registry/consul/registry.go
@@ -0,0 +1,186 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package consul
+
+import (
+	"strconv"
+	"time"
+)
+
+import (
+	consul "github.com/hashicorp/consul/api"
+	perrors "github.com/pkg/errors"
+)
+
+import (
+	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
+	"github.com/apache/dubbo-go/common/extension"
+	"github.com/apache/dubbo-go/common/logger"
+	"github.com/apache/dubbo-go/registry"
+)
+
+const (
+	RegistryConnDelay = 3
+)
+
+func init() {
+	extension.SetRegistry("consul", newConsulRegistry)
+}
+
+// Consul registry wraps the consul client, to
+// register and subscribe service.
+type consulRegistry struct {
+	// Registry url.
+	*common.URL
+
+	// Consul client.
+	client *consul.Client
+
+	// Done field represents whether
+	// consul registry is closed.
+	done chan struct{}
+}
+
+func newConsulRegistry(url *common.URL) (registry.Registry, error) {
+	config := &consul.Config{Address: url.Location}
+	client, err := consul.NewClient(config)
+	if err != nil {
+		return nil, err
+	}
+
+	r := &consulRegistry{
+		URL:    url,
+		client: client,
+		done:   make(chan struct{}),
+	}
+
+	return r, nil
+}
+
+func (r *consulRegistry) Register(url common.URL) error {
+	var err error
+
+	role, _ := strconv.Atoi(r.URL.GetParam(constant.ROLE_KEY, ""))
+	if role == common.PROVIDER {
+		err = r.register(url)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (r *consulRegistry) register(url common.URL) error {
+	service, err := buildService(url)
+	if err != nil {
+		return err
+	}
+	return r.client.Agent().ServiceRegister(service)
+}
+
+func (r *consulRegistry) Unregister(url common.URL) error {
+	var err error
+
+	role, _ := strconv.Atoi(r.URL.GetParam(constant.ROLE_KEY, ""))
+	if role == common.PROVIDER {
+		err = r.unregister(url)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (r *consulRegistry) unregister(url common.URL) error {
+	return r.client.Agent().ServiceDeregister(buildId(url))
+}
+
+func (r *consulRegistry) subscribe(url *common.URL) (registry.Listener, error) {
+	var (
+		listener registry.Listener
+		err      error
+	)
+
+	role, _ := strconv.Atoi(r.URL.GetParam(constant.ROLE_KEY, ""))
+	if role == common.CONSUMER {
+		listener, err = r.getListener(*url)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return listener, nil
+}
+
+//subscibe from registry
+func (r *consulRegistry) Subscribe(url *common.URL, notifyListener registry.NotifyListener) {
+	for {
+		if !r.IsAvailable() {
+			logger.Warnf("event listener game over.")
+			time.Sleep(time.Duration(RegistryConnDelay) * time.Second)
+			return
+		}
+
+		listener, err := r.subscribe(url)
+		if err != nil {
+			if !r.IsAvailable() {
+				logger.Warnf("event listener game over.")
+				return
+			}
+			logger.Warnf("getListener() = err:%v", perrors.WithStack(err))
+			time.Sleep(time.Duration(RegistryConnDelay) * time.Second)
+			continue
+		}
+
+		for {
+			if serviceEvent, err := listener.Next(); err != nil {
+				logger.Warnf("Selector.watch() = error{%v}", perrors.WithStack(err))
+				listener.Close()
+				time.Sleep(time.Duration(RegistryConnDelay) * time.Second)
+				return
+			} else {
+				logger.Infof("update begin, service event: %v", serviceEvent.String())
+				notifyListener.Notify(serviceEvent)
+			}
+
+		}
+
+	}
+}
+
+func (r *consulRegistry) getListener(url common.URL) (registry.Listener, error) {
+	listener, err := newConsulListener(*r.URL, url)
+	return listener, err
+}
+
+func (r *consulRegistry) GetUrl() common.URL {
+	return *r.URL
+}
+
+func (r *consulRegistry) IsAvailable() bool {
+	select {
+	case <-r.done:
+		return false
+	default:
+		return true
+	}
+}
+
+func (r *consulRegistry) Destroy() {
+	close(r.done)
+}
diff --git a/registry/consul/registry_test.go b/registry/consul/registry_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..ff8c2e23163e85b128436bde001455f316b28dc6
--- /dev/null
+++ b/registry/consul/registry_test.go
@@ -0,0 +1,57 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package consul
+
+import (
+	"github.com/stretchr/testify/assert"
+)
+
+func (suite *consulRegistryTestSuite) testNewProviderRegistry() {
+	providerRegistryUrl := newProviderRegistryUrl(registryHost, registryPort)
+	providerRegistry, err := newConsulRegistry(providerRegistryUrl)
+	assert.NoError(suite.t, err)
+	suite.providerRegistry = providerRegistry
+}
+
+func (suite *consulRegistryTestSuite) testNewConsumerRegistry() {
+	consumerRegistryUrl := newConsumerRegistryUrl(registryHost, registryPort)
+	consumerRegistry, err := newConsulRegistry(consumerRegistryUrl)
+	assert.NoError(suite.t, err)
+	suite.consumerRegistry = consumerRegistry.(*consulRegistry)
+}
+
+func (suite *consulRegistryTestSuite) testRegister() {
+	providerUrl := newProviderUrl(providerHost, providerPort, service, protocol)
+	suite.providerUrl = providerUrl
+	err := suite.providerRegistry.Register(providerUrl)
+	assert.NoError(suite.t, err)
+}
+
+func (suite *consulRegistryTestSuite) testUnregister() {
+	consulProviderRegistry, _ := suite.providerRegistry.(*consulRegistry)
+	err := consulProviderRegistry.Unregister(suite.providerUrl)
+	assert.NoError(suite.t, err)
+}
+
+func (suite *consulRegistryTestSuite) testSubscribe() {
+	consumerUrl := newConsumerUrl(consumerHost, consumerPort, service, protocol)
+	suite.consumerUrl = consumerUrl
+	listener, err := suite.consumerRegistry.subscribe(&consumerUrl)
+	assert.NoError(suite.t, err)
+	suite.listener = listener
+}
diff --git a/registry/consul/utils.go b/registry/consul/utils.go
new file mode 100644
index 0000000000000000000000000000000000000000..6ecb0573ec5683d66795f539a8beb2eff5b6be2c
--- /dev/null
+++ b/registry/consul/utils.go
@@ -0,0 +1,114 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package consul
+
+import (
+	"context"
+	"crypto/md5"
+	"encoding/hex"
+	"fmt"
+	"strconv"
+)
+
+import (
+	consul "github.com/hashicorp/consul/api"
+	perrors "github.com/pkg/errors"
+)
+
+import (
+	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/utils"
+)
+
+func buildId(url common.URL) string {
+	t := md5.Sum([]byte(url.String()))
+	return hex.EncodeToString(t[:])
+}
+
+func buildService(url common.URL) (*consul.AgentServiceRegistration, error) {
+	var err error
+
+	// id
+	id := buildId(url)
+
+	// address
+	if url.Ip == "" {
+		url.Ip, _ = utils.GetLocalIP()
+	}
+
+	// port
+	port, err := strconv.Atoi(url.Port)
+	if err != nil {
+		return nil, err
+	}
+
+	// tcp
+	tcp := fmt.Sprintf("%s:%d", url.Ip, port)
+
+	// tags
+	tags := make([]string, 0, 8)
+	for k := range url.Params {
+		tags = append(tags, k+"="+url.Params.Get(k))
+	}
+	tags = append(tags, "dubbo")
+
+	// meta
+	meta := make(map[string]string, 8)
+	meta["url"] = url.String()
+
+	// check
+	check := &consul.AgentServiceCheck{
+		TCP:                            tcp,
+		Interval:                       url.GetParam("consul-check-interval", "10s"),
+		Timeout:                        url.GetParam("consul-check-timeout", "1s"),
+		DeregisterCriticalServiceAfter: url.GetParam("consul-deregister-critical-service-after", "20s"),
+	}
+
+	service := &consul.AgentServiceRegistration{
+		Name:    url.Service(),
+		ID:      id,
+		Address: url.Ip,
+		Port:    port,
+		Tags:    tags,
+		Meta:    meta,
+		Check:   check,
+	}
+
+	return service, nil
+}
+
+func retrieveURL(service *consul.ServiceEntry) (common.URL, error) {
+	url, ok := service.Service.Meta["url"]
+	if !ok {
+		return common.URL{}, perrors.New("retrieve url fails with no url key in service meta")
+	}
+	url1, err := common.NewURL(context.Background(), url)
+	if err != nil {
+		return common.URL{}, perrors.WithStack(err)
+	}
+	return url1, nil
+}
+
+func in(url common.URL, urls []common.URL) bool {
+	for _, url1 := range urls {
+		if url.URLEqual(url1) {
+			return true
+		}
+	}
+	return false
+}
diff --git a/registry/consul/utils_test.go b/registry/consul/utils_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..d66600b773ee78b43ac3da4edf8849d0019c744d
--- /dev/null
+++ b/registry/consul/utils_test.go
@@ -0,0 +1,226 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package consul
+
+import (
+	"fmt"
+	"io/ioutil"
+	"net"
+	"net/url"
+	"os"
+	"strconv"
+	"sync"
+	"testing"
+)
+
+import (
+	"github.com/hashicorp/consul/agent"
+)
+
+import (
+	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
+	"github.com/apache/dubbo-go/registry"
+	"github.com/apache/dubbo-go/remoting"
+)
+
+var (
+	registryHost = "localhost"
+	registryPort = 8500
+	providerHost = "localhost"
+	providerPort = 8000
+	consumerHost = "localhost"
+	consumerPort = 8001
+	service      = "HelloWorld"
+	protocol     = "tcp"
+)
+
+func newProviderRegistryUrl(host string, port int) *common.URL {
+	url1 := common.NewURLWithOptions(
+		common.WithIp(host),
+		common.WithPort(strconv.Itoa(port)),
+		common.WithParams(url.Values{}),
+		common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)),
+	)
+	return url1
+}
+
+func newConsumerRegistryUrl(host string, port int) *common.URL {
+	url1 := common.NewURLWithOptions(
+		common.WithIp(host),
+		common.WithPort(strconv.Itoa(port)),
+		common.WithParams(url.Values{}),
+		common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER)),
+	)
+	return url1
+}
+
+func newProviderUrl(host string, port int, service string, protocol string) common.URL {
+	url1 := common.NewURLWithOptions(
+		common.WithIp(host),
+		common.WithPort(strconv.Itoa(port)),
+		common.WithPath(service),
+		common.WithProtocol(protocol),
+	)
+	return *url1
+}
+
+func newConsumerUrl(host string, port int, service string, protocol string) common.URL {
+	url1 := common.NewURLWithOptions(
+		common.WithIp(host),
+		common.WithPort(strconv.Itoa(port)),
+		common.WithPath(service),
+		common.WithProtocol(protocol),
+	)
+	return *url1
+}
+
+type testConsulAgent struct {
+	dataDir   string
+	testAgent *agent.TestAgent
+}
+
+func newConsulAgent(t *testing.T, port int) *testConsulAgent {
+	dataDir, _ := ioutil.TempDir("./", "agent")
+	hcl := `
+		ports { 
+			http = ` + strconv.Itoa(port) + `
+		}
+		data_dir = "` + dataDir + `"
+	`
+	testAgent := &agent.TestAgent{Name: t.Name(), DataDir: dataDir, HCL: hcl}
+	testAgent.Start(t)
+
+	consulAgent := &testConsulAgent{
+		dataDir:   dataDir,
+		testAgent: testAgent,
+	}
+	return consulAgent
+}
+
+func (consulAgent *testConsulAgent) close() {
+	consulAgent.testAgent.Shutdown()
+	os.RemoveAll(consulAgent.dataDir)
+}
+
+type testServer struct {
+	listener net.Listener
+	wg       sync.WaitGroup
+	done     chan struct{}
+}
+
+func newServer(host string, port int) *testServer {
+	addr := fmt.Sprintf("%s:%d", host, port)
+	tcpAddr, _ := net.ResolveTCPAddr("tcp", addr)
+	listener, _ := net.ListenTCP("tcp", tcpAddr)
+
+	server := &testServer{
+		listener: listener,
+		done:     make(chan struct{}),
+	}
+
+	server.wg.Add(1)
+	go server.serve()
+	return server
+}
+
+func (server *testServer) serve() {
+	defer server.wg.Done()
+	for {
+		select {
+		case <-server.done:
+			return
+		default:
+			conn, err := server.listener.Accept()
+			if err != nil {
+				continue
+			}
+			conn.Write([]byte("Hello World"))
+			conn.Close()
+		}
+	}
+}
+
+func (server *testServer) close() {
+	close(server.done)
+	server.listener.Close()
+	server.wg.Wait()
+}
+
+type consulRegistryTestSuite struct {
+	t                *testing.T
+	providerRegistry registry.Registry
+	consumerRegistry *consulRegistry
+	listener         registry.Listener
+	providerUrl      common.URL
+	consumerUrl      common.URL
+}
+
+func newConsulRegistryTestSuite(t *testing.T) *consulRegistryTestSuite {
+	suite := &consulRegistryTestSuite{t: t}
+	return suite
+}
+
+func (suite *consulRegistryTestSuite) close() {
+	suite.listener.Close()
+	suite.providerRegistry.Destroy()
+	suite.consumerRegistry.Destroy()
+}
+
+// register -> subscribe -> unregister
+func test1(t *testing.T) {
+	consulAgent := newConsulAgent(t, registryPort)
+	defer consulAgent.close()
+
+	server := newServer(providerHost, providerPort)
+	defer server.close()
+
+	suite := newConsulRegistryTestSuite(t)
+	defer suite.close()
+
+	suite.testNewProviderRegistry()
+	suite.testRegister()
+	suite.testNewConsumerRegistry()
+	suite.testSubscribe()
+	suite.testListener(remoting.EventTypeAdd)
+	suite.testUnregister()
+	suite.testListener(remoting.EventTypeDel)
+}
+
+// subscribe -> register
+func test2(t *testing.T) {
+	consulAgent := newConsulAgent(t, registryPort)
+	defer consulAgent.close()
+
+	server := newServer(providerHost, providerPort)
+	defer server.close()
+
+	suite := newConsulRegistryTestSuite(t)
+	defer suite.close()
+
+	suite.testNewConsumerRegistry()
+	suite.testSubscribe()
+	suite.testNewProviderRegistry()
+	suite.testRegister()
+	suite.testListener(remoting.EventTypeAdd)
+}
+
+func TestConsulRegistry(t *testing.T) {
+	t.Run("test1", test1)
+	t.Run("test2", test2)
+}
diff --git a/registry/directory/directory.go b/registry/directory/directory.go
index 43bc65742b9ddfbca16800ce3a833f35630c87b1..3ea5b36fcd7c0a0b183d9b129ce227f3886c1ae5 100644
--- a/registry/directory/directory.go
+++ b/registry/directory/directory.go
@@ -56,7 +56,6 @@ type registryDirectory struct {
 	serviceType      string
 	registry         registry.Registry
 	cacheInvokersMap *sync.Map //use sync.map
-	//cacheInvokersMap map[string]protocol.Invoker
 	Options
 }
 
@@ -95,16 +94,13 @@ func (nl *notifyListener) Notify(event *registry.ServiceEvent) {
 	go nl.dir.update(event)
 }
 
-//subscribe service from registry , and update the cacheServices
+//subscribe service from registry, and update the cacheServices
 func (dir *registryDirectory) update(res *registry.ServiceEvent) {
 	if res == nil {
 		return
 	}
-
 	logger.Debugf("registry update, result{%s}", res)
-
 	logger.Debugf("update service name: %s!", res.Service)
-
 	dir.refreshInvokers(res)
 }
 
@@ -130,7 +126,6 @@ func (dir *registryDirectory) refreshInvokers(res *registry.ServiceEvent) {
 }
 
 func (dir *registryDirectory) toGroupInvokers() []protocol.Invoker {
-
 	newInvokersList := []protocol.Invoker{}
 	groupInvokersMap := make(map[string][]protocol.Invoker)
 	groupInvokersList := []protocol.Invoker{}
diff --git a/registry/etcdv3/listener.go b/registry/etcdv3/listener.go
index a8f2facc1aa43db4daea77c03f332df16f302431..603a30171d2e591ed1ef968250b1fea840e30f2e 100644
--- a/registry/etcdv3/listener.go
+++ b/registry/etcdv3/listener.go
@@ -12,16 +12,17 @@ import (
 import (
 	"github.com/apache/dubbo-go/common"
 	"github.com/apache/dubbo-go/common/logger"
+	"github.com/apache/dubbo-go/config_center"
 	"github.com/apache/dubbo-go/registry"
 	"github.com/apache/dubbo-go/remoting"
 )
 
 type dataListener struct {
 	interestedURL []*common.URL
-	listener      remoting.ConfigurationListener
+	listener      config_center.ConfigurationListener
 }
 
-func NewRegistryDataListener(listener remoting.ConfigurationListener) *dataListener {
+func NewRegistryDataListener(listener config_center.ConfigurationListener) *dataListener {
 	return &dataListener{listener: listener, interestedURL: []*common.URL{}}
 }
 
@@ -40,7 +41,7 @@ func (l *dataListener) DataChange(eventType remoting.Event) bool {
 
 	for _, v := range l.interestedURL {
 		if serviceURL.URLEqual(*v) {
-			l.listener.Process(&remoting.ConfigChangeEvent{Key: eventType.Path, Value: serviceURL, ConfigType: eventType.Action})
+			l.listener.Process(&config_center.ConfigChangeEvent{Key: eventType.Path, Value: serviceURL, ConfigType: eventType.Action})
 			return true
 		}
 	}
@@ -50,15 +51,15 @@ func (l *dataListener) DataChange(eventType remoting.Event) bool {
 
 type configurationListener struct {
 	registry *etcdV3Registry
-	events   chan *remoting.ConfigChangeEvent
+	events   chan *config_center.ConfigChangeEvent
 }
 
 func NewConfigurationListener(reg *etcdV3Registry) *configurationListener {
 	// add a new waiter
 	reg.wg.Add(1)
-	return &configurationListener{registry: reg, events: make(chan *remoting.ConfigChangeEvent, 32)}
+	return &configurationListener{registry: reg, events: make(chan *config_center.ConfigChangeEvent, 32)}
 }
-func (l *configurationListener) Process(configType *remoting.ConfigChangeEvent) {
+func (l *configurationListener) Process(configType *config_center.ConfigChangeEvent) {
 	l.events <- configType
 }
 
diff --git a/registry/etcdv3/listener_test.go b/registry/etcdv3/listener_test.go
index 0ac8fc475e454e737e0ea03301709457561e961c..00024d28949f8b517d49f45ce6f16422d67b0a6b 100644
--- a/registry/etcdv3/listener_test.go
+++ b/registry/etcdv3/listener_test.go
@@ -2,6 +2,7 @@ package etcdv3
 
 import (
 	"context"
+	"github.com/apache/dubbo-go/config_center"
 	"testing"
 	"time"
 )
@@ -68,4 +69,4 @@ func TestRegistrySuite(t *testing.T) {
 
 type MockDataListener struct{}
 
-func (*MockDataListener) Process(configType *remoting.ConfigChangeEvent) {}
+func (*MockDataListener) Process(configType *config_center.ConfigChangeEvent) {}
diff --git a/registry/etcdv3/registry.go b/registry/etcdv3/registry.go
index 5802142989e5d8297f027ddecff3d7780070729f..4b140f893f1595a0fcf3a522766fee39e9d26a78 100644
--- a/registry/etcdv3/registry.go
+++ b/registry/etcdv3/registry.go
@@ -30,7 +30,10 @@ var (
 	localIP   = ""
 )
 
-const Name = "etcdv3"
+const (
+	Name              = "etcdv3"
+	RegistryConnDelay = 3
+)
 
 func init() {
 	processID = fmt.Sprintf("%d", os.Getpid())
@@ -292,7 +295,7 @@ func (r *etcdV3Registry) registerProvider(svc common.URL) error {
 	return nil
 }
 
-func (r *etcdV3Registry) Subscribe(svc common.URL) (registry.Listener, error) {
+func (r *etcdV3Registry) subscribe(svc *common.URL) (registry.Listener, error) {
 
 	var (
 		configListener *configurationListener
@@ -318,8 +321,44 @@ func (r *etcdV3Registry) Subscribe(svc common.URL) (registry.Listener, error) {
 	}
 
 	//register the svc to dataListener
-	r.dataListener.AddInterestedURL(&svc)
+	r.dataListener.AddInterestedURL(svc)
 	go r.listener.ListenServiceEvent(fmt.Sprintf("/dubbo/%s/providers", svc.Service()), r.dataListener)
 
 	return configListener, nil
 }
+
+//subscibe from registry
+func (r *etcdV3Registry) Subscribe(url *common.URL, notifyListener registry.NotifyListener) {
+	for {
+		if !r.IsAvailable() {
+			logger.Warnf("event listener game over.")
+			time.Sleep(time.Duration(RegistryConnDelay) * time.Second)
+			return
+		}
+
+		listener, err := r.subscribe(url)
+		if err != nil {
+			if !r.IsAvailable() {
+				logger.Warnf("event listener game over.")
+				return
+			}
+			logger.Warnf("getListener() = err:%v", perrors.WithStack(err))
+			time.Sleep(time.Duration(RegistryConnDelay) * time.Second)
+			continue
+		}
+
+		for {
+			if serviceEvent, err := listener.Next(); err != nil {
+				logger.Warnf("Selector.watch() = error{%v}", perrors.WithStack(err))
+				listener.Close()
+				time.Sleep(time.Duration(RegistryConnDelay) * time.Second)
+				return
+			} else {
+				logger.Infof("update begin, service event: %v", serviceEvent.String())
+				notifyListener.Notify(serviceEvent)
+			}
+
+		}
+
+	}
+}
diff --git a/registry/etcdv3/registry_test.go b/registry/etcdv3/registry_test.go
index 26204c74ad4305278e33d9c8b50199cfa578bf8a..4b9fa59afab5776a8f9a979c45f2d1267c522d4c 100644
--- a/registry/etcdv3/registry_test.go
+++ b/registry/etcdv3/registry_test.go
@@ -67,7 +67,7 @@ func (suite *RegistryTestSuite) TestSubscribe() {
 	reg2 := initRegistry(t)
 
 	reg2.Register(url)
-	listener, err := reg2.Subscribe(url)
+	listener, err := reg2.subscribe(&url)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -85,7 +85,7 @@ func (suite *RegistryTestSuite) TestConsumerDestory() {
 	url, _ := common.NewURL(context.Background(), "dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParamsValue(constant.CLUSTER_KEY, "mock"), common.WithMethods([]string{"GetUser", "AddUser"}))
 
 	reg := initRegistry(t)
-	_, err := reg.Subscribe(url)
+	_, err := reg.subscribe(&url)
 	if err != nil {
 		t.Fatal(err)
 	}
diff --git a/registry/nacos/listener.go b/registry/nacos/listener.go
index c42abd0bb16573da33c20c150896f85b3a7edfd0..1f264ec9e4ba9b8e970eba7da3b46d8792831dea 100644
--- a/registry/nacos/listener.go
+++ b/registry/nacos/listener.go
@@ -19,6 +19,7 @@ import (
 	"github.com/apache/dubbo-go/common"
 	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/common/logger"
+	"github.com/apache/dubbo-go/config_center"
 	"github.com/apache/dubbo-go/registry"
 	"github.com/apache/dubbo-go/remoting"
 )
@@ -26,7 +27,7 @@ import (
 type nacosListener struct {
 	namingClient   naming_client.INamingClient
 	listenUrl      common.URL
-	events         chan *remoting.ConfigChangeEvent
+	events         chan *config_center.ConfigChangeEvent
 	instanceMap    map[string]model.Instance
 	cacheLock      sync.Mutex
 	done           chan struct{}
@@ -36,7 +37,7 @@ type nacosListener struct {
 func NewNacosListener(url common.URL, namingClient naming_client.INamingClient) (*nacosListener, error) {
 	listener := &nacosListener{
 		namingClient: namingClient,
-		listenUrl:    url, events: make(chan *remoting.ConfigChangeEvent, 32),
+		listenUrl:    url, events: make(chan *config_center.ConfigChangeEvent, 32),
 		instanceMap: map[string]model.Instance{},
 		done:        make(chan struct{}),
 	}
@@ -134,20 +135,20 @@ func (nl *nacosListener) Callback(services []model.SubscribeService, err error)
 	for i := range addInstances {
 		newUrl := generateUrl(addInstances[i])
 		if newUrl != nil {
-			nl.process(&remoting.ConfigChangeEvent{Value: *newUrl, ConfigType: remoting.EventTypeAdd})
+			nl.process(&config_center.ConfigChangeEvent{Value: *newUrl, ConfigType: remoting.EventTypeAdd})
 		}
 	}
 	for i := range delInstances {
 		newUrl := generateUrl(delInstances[i])
 		if newUrl != nil {
-			nl.process(&remoting.ConfigChangeEvent{Value: *newUrl, ConfigType: remoting.EventTypeDel})
+			nl.process(&config_center.ConfigChangeEvent{Value: *newUrl, ConfigType: remoting.EventTypeDel})
 		}
 	}
 
 	for i := range updateInstances {
 		newUrl := generateUrl(updateInstances[i])
 		if newUrl != nil {
-			nl.process(&remoting.ConfigChangeEvent{Value: *newUrl, ConfigType: remoting.EvnetTypeUpdate})
+			nl.process(&config_center.ConfigChangeEvent{Value: *newUrl, ConfigType: remoting.EventTypeUpdate})
 		}
 	}
 }
@@ -175,7 +176,7 @@ func (nl *nacosListener) stopListen() error {
 	return nl.namingClient.Unsubscribe(nl.subscribeParam)
 }
 
-func (nl *nacosListener) process(configType *remoting.ConfigChangeEvent) {
+func (nl *nacosListener) process(configType *config_center.ConfigChangeEvent) {
 	nl.events <- configType
 }
 
diff --git a/registry/nacos/registry.go b/registry/nacos/registry.go
index f10e230bc44dba8f8007ea659db3747a237c9de1..68a2704d8a42a653ad5c2cc3afa0d82f19ad50cc 100644
--- a/registry/nacos/registry.go
+++ b/registry/nacos/registry.go
@@ -2,6 +2,7 @@ package nacos
 
 import (
 	"bytes"
+	"github.com/apache/dubbo-go/common/logger"
 	"net"
 	"strconv"
 	"strings"
@@ -27,6 +28,10 @@ var (
 	localIP = ""
 )
 
+const (
+	RegistryConnDelay = 3
+)
+
 func init() {
 	localIP, _ = utils.GetLocalIP()
 	extension.SetRegistry(constant.NACOS_KEY, newNacosRegistry)
@@ -120,7 +125,7 @@ func appendParam(target *bytes.Buffer, url common.URL, key string) {
 func createRegisterParam(url common.URL, serviceName string) vo.RegisterInstanceParam {
 	category := getCategory(url)
 	params := make(map[string]string, len(url.Params)+3)
-	for k, _ := range url.Params {
+	for k := range url.Params {
 		params[k] = url.Params.Get(k)
 	}
 	params[constant.NACOS_CATEGORY_KEY] = category
@@ -159,10 +164,45 @@ func (nr *nacosRegistry) Register(url common.URL) error {
 	return nil
 }
 
-func (nr *nacosRegistry) Subscribe(conf common.URL) (registry.Listener, error) {
-	return NewNacosListener(conf, nr.namingClient)
+func (nr *nacosRegistry) subscribe(conf *common.URL) (registry.Listener, error) {
+	return NewNacosListener(*conf, nr.namingClient)
 }
 
+//subscibe from registry
+func (r *nacosRegistry) Subscribe(url *common.URL, notifyListener registry.NotifyListener) {
+	for {
+		if !r.IsAvailable() {
+			logger.Warnf("event listener game over.")
+			time.Sleep(time.Duration(RegistryConnDelay) * time.Second)
+			return
+		}
+
+		listener, err := r.subscribe(url)
+		if err != nil {
+			if !r.IsAvailable() {
+				logger.Warnf("event listener game over.")
+				return
+			}
+			logger.Warnf("getListener() = err:%v", perrors.WithStack(err))
+			time.Sleep(time.Duration(RegistryConnDelay) * time.Second)
+			continue
+		}
+
+		for {
+			if serviceEvent, err := listener.Next(); err != nil {
+				logger.Warnf("Selector.watch() = error{%v}", perrors.WithStack(err))
+				listener.Close()
+				time.Sleep(time.Duration(RegistryConnDelay) * time.Second)
+				return
+			} else {
+				logger.Infof("update begin, service event: %v", serviceEvent.String())
+				notifyListener.Notify(serviceEvent)
+			}
+
+		}
+
+	}
+}
 func (nr *nacosRegistry) GetUrl() common.URL {
 	return *nr.URL
 }
diff --git a/registry/nacos/registry_test.go b/registry/nacos/registry_test.go
index 97dea0d2b016c8f84ee7cf6f4856ba545b720a48..fc9dd25868db7040392b2d84f3b852d5306879c6 100644
--- a/registry/nacos/registry_test.go
+++ b/registry/nacos/registry_test.go
@@ -18,7 +18,7 @@ import (
 	"github.com/apache/dubbo-go/common/constant"
 )
 
-func Test_Register(t *testing.T) {
+func TestNacosRegistry_Register(t *testing.T) {
 	regurl, _ := common.NewURL(context.TODO(), "registry://console.nacos.io:80", common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)))
 	urlMap := url.Values{}
 	urlMap.Set(constant.GROUP_KEY, "guangzhou-idc")
@@ -68,7 +68,7 @@ func TestNacosRegistry_Subscribe(t *testing.T) {
 
 	regurl.Params.Set(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER))
 	reg2, _ := newNacosRegistry(&regurl)
-	listener, err := reg2.Subscribe(url)
+	listener, err := reg2.(*nacosRegistry).subscribe(&url)
 	assert.Nil(t, err)
 	if err != nil {
 		t.Errorf("subscribe error:%s \n", err.Error())
@@ -91,7 +91,7 @@ func TestNacosRegistry_Subscribe_del(t *testing.T) {
 	urlMap.Set(constant.GROUP_KEY, "guangzhou-idc")
 	urlMap.Set(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER))
 	urlMap.Set(constant.INTERFACE_KEY, "com.ikurento.user.UserProvider")
-	urlMap.Set(constant.VERSION_KEY, "1.0.0")
+	urlMap.Set(constant.VERSION_KEY, "2.0.0")
 	urlMap.Set(constant.CLUSTER_KEY, "mock")
 	urlMap.Set(constant.NACOS_PATH_KEY, "")
 	url1, _ := common.NewURL(context.TODO(), "dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider", common.WithParams(urlMap), common.WithMethods([]string{"GetUser", "AddUser"}))
@@ -113,7 +113,7 @@ func TestNacosRegistry_Subscribe_del(t *testing.T) {
 
 	regurl.Params.Set(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER))
 	reg2, _ := newNacosRegistry(&regurl)
-	listener, err := reg2.Subscribe(url1)
+	listener, err := reg2.(*nacosRegistry).subscribe(&url1)
 	assert.Nil(t, err)
 	if err != nil {
 		t.Errorf("subscribe error:%s \n", err.Error())
@@ -139,8 +139,8 @@ func TestNacosRegistry_Subscribe_del(t *testing.T) {
 	assert.Regexp(t, ".*ServiceEvent{Action{add}.*", serviceEvent2.String())
 
 	nacosReg := reg.(*nacosRegistry)
-	//deregister  instance to mock instance offline
-	nacosReg.namingClient.DeregisterInstance(vo.DeregisterInstanceParam{Ip: "127.0.0.2", Port: 20000, ServiceName: "providers:com.ikurento.user.UserProvider:1.0.0:guangzhou-idc"})
+	//deregister instance to mock instance offline
+	nacosReg.namingClient.DeregisterInstance(vo.DeregisterInstanceParam{Ip: "127.0.0.2", Port: 20000, ServiceName: "providers:com.ikurento.user.UserProvider:2.0.0:guangzhou-idc"})
 
 	serviceEvent3, _ := listener.Next()
 	assert.NoError(t, err)
@@ -162,7 +162,7 @@ func TestNacosListener_Close(t *testing.T) {
 	urlMap.Set(constant.NACOS_PATH_KEY, "")
 	url1, _ := common.NewURL(context.TODO(), "dubbo://127.0.0.1:20000/com.ikurento.user.UserProvider2", common.WithParams(urlMap), common.WithMethods([]string{"GetUser", "AddUser"}))
 	reg, _ := newNacosRegistry(&regurl)
-	listener, err := reg.Subscribe(url1)
+	listener, err := reg.(*nacosRegistry).subscribe(&url1)
 	assert.Nil(t, err)
 	if err != nil {
 		t.Errorf("subscribe error:%s \n", err.Error())
diff --git a/registry/protocol/protocol.go b/registry/protocol/protocol.go
index 51d4d26a6696f51d892ffc8a1e5fbfd935335baa..0289ddac56f36b3b039232c6d1c1b6090dff9ff1 100644
--- a/registry/protocol/protocol.go
+++ b/registry/protocol/protocol.go
@@ -20,6 +20,8 @@ package protocol
 import (
 	"github.com/apache/dubbo-go/config"
 	"github.com/apache/dubbo-go/config_center"
+	"github.com/apache/dubbo-go/remoting"
+	"strings"
 	"sync"
 )
 
@@ -54,6 +56,12 @@ func init() {
 	extension.SetProtocol("registry", GetProtocol)
 }
 
+func getCacheKey(url *common.URL) string {
+	newUrl := url.Clone()
+	newUrl.Params.Del("dynamic")
+	newUrl.Params.Del("enabled")
+	return newUrl.String()
+}
 func newRegistryProtocol() *registryProtocol {
 	overrideListeners := sync.Map{}
 	return &registryProtocol{
@@ -114,31 +122,31 @@ func (proto *registryProtocol) Export(invoker protocol.Invoker) protocol.Exporte
 	registryUrl := getRegistryUrl(invoker)
 	providerUrl := getProviderUrl(invoker)
 
-	overriderUrl := getSubscribedOverrideUrl(&providerUrl)
+	overriderUrl := getSubscribedOverrideUrl(providerUrl)
 	// Deprecated! subscribe to override rules in 2.6.x or before.
 	overrideSubscribeListener := newOverrideSubscribeListener(overriderUrl, invoker, proto)
 	proto.overrideListeners.Store(overriderUrl, overrideSubscribeListener)
-	proto.providerConfigurationListener.OverrideUrl(&providerUrl)
-	serviceConfigurationListener := newServiceConfigurationListener(overrideSubscribeListener, &providerUrl)
+	proto.providerConfigurationListener.OverrideUrl(providerUrl)
+	serviceConfigurationListener := newServiceConfigurationListener(overrideSubscribeListener, providerUrl)
 	proto.serviceConfigurationListeners.Store(providerUrl.ServiceKey(), serviceConfigurationListener)
-	serviceConfigurationListener.OverrideUrl(&providerUrl)
+	serviceConfigurationListener.OverrideUrl(providerUrl)
 
 	var reg registry.Registry
 
 	if regI, loaded := proto.registries.Load(registryUrl.Key()); !loaded {
-		reg = getRegistry(&registryUrl)
+		reg = getRegistry(registryUrl)
 		proto.registries.Store(registryUrl.Key(), reg)
 	} else {
 		reg = regI.(registry.Registry)
 	}
 
-	err := reg.Register(providerUrl)
+	err := reg.Register(*providerUrl)
 	if err != nil {
 		logger.Errorf("provider service %v register registry %v error, error message is %s", providerUrl.Key(), registryUrl.Key(), err.Error())
 		return nil
 	}
 
-	key := providerUrl.Key()
+	key := getCacheKey(providerUrl)
 	logger.Infof("The cached exporter keys is %v !", key)
 	cachedExporter, loaded := proto.bounds.Load(key)
 	if loaded {
@@ -155,21 +163,17 @@ func (proto *registryProtocol) Export(invoker protocol.Invoker) protocol.Exporte
 
 }
 func (proto *registryProtocol) reExport(invoker protocol.Invoker, newUrl *common.URL) {
-	key := getProviderUrl(invoker).Key()
+	url := getProviderUrl(invoker)
+	key := getCacheKey(url)
 	if oldExporter, loaded := proto.bounds.Load(key); loaded {
-		wrappedNewInvoker := newWrappedInvoker(invoker, *newUrl)
-		//TODO:MAY not safe
+		wrappedNewInvoker := newWrappedInvoker(invoker, newUrl)
 		oldExporter.(protocol.Exporter).Unexport()
 		proto.bounds.Delete(key)
-
 		proto.Export(wrappedNewInvoker)
 		//TODO:  unregister & unsubscribe
 
 	}
 }
-func (proto *registryProtocol) overrideWithConfig(providerUrl *common.URL, listener *overrideSubscribeListener) {
-
-}
 
 type overrideSubscribeListener struct {
 	url           *common.URL
@@ -182,47 +186,79 @@ func newOverrideSubscribeListener(overriderUrl *common.URL, invoker protocol.Inv
 	return &overrideSubscribeListener{url: overriderUrl, originInvoker: invoker, protocol: proto}
 }
 func (nl *overrideSubscribeListener) Notify(event *registry.ServiceEvent) {
-	if isMatched(&(event.Service), nl.url) {
+	if isMatched(&(event.Service), nl.url) && event.Action == remoting.EventTypeAdd {
 		nl.configurator = extension.GetDefaultConfigurator(&(event.Service))
 		nl.doOverrideIfNecessary()
 	}
 }
 func (nl *overrideSubscribeListener) doOverrideIfNecessary() {
 	providerUrl := getProviderUrl(nl.originInvoker)
-	key := providerUrl.Key()
+	key := getCacheKey(providerUrl)
 	if exporter, ok := nl.protocol.bounds.Load(key); ok {
 		currentUrl := exporter.(protocol.Exporter).GetInvoker().GetUrl()
 		// Compatible with the 2.6.x
-		nl.configurator.Configure(&providerUrl)
+		nl.configurator.Configure(providerUrl)
 		// provider application level  management in 2.7.x
 		for _, v := range nl.protocol.providerConfigurationListener.Configurators() {
-			v.Configure(&providerUrl)
+			v.Configure(providerUrl)
 		}
 		// provider service level  management in 2.7.x
 		if serviceListener, ok := nl.protocol.serviceConfigurationListeners.Load(providerUrl.ServiceKey()); ok {
 			for _, v := range serviceListener.(*serviceConfigurationListener).Configurators() {
-				v.Configure(&providerUrl)
+				v.Configure(providerUrl)
 			}
 		}
 
-		if currentUrl.String() == providerUrl.String() {
+		if currentUrl.String() != providerUrl.String() {
 			newRegUrl := nl.originInvoker.GetUrl()
-			setProviderUrl(&newRegUrl, &providerUrl)
+			setProviderUrl(&newRegUrl, providerUrl)
 			nl.protocol.reExport(nl.originInvoker, &newRegUrl)
 		}
 	}
 }
 
-func isMatched(url *common.URL, subscribedUrl *common.URL) bool {
+func isMatched(providerUrl *common.URL, consumerUrl *common.URL) bool {
 	// Compatible with the 2.6.x
-	if len(url.GetParam(constant.CATEGORY_KEY, "")) == 0 && url.Protocol == constant.OVERRIDE_PROTOCOL {
-		url.AddParam(constant.CATEGORY_KEY, constant.CONFIGURATORS_CATEGORY)
+	if len(providerUrl.GetParam(constant.CATEGORY_KEY, "")) == 0 && providerUrl.Protocol == constant.OVERRIDE_PROTOCOL {
+		providerUrl.AddParam(constant.CATEGORY_KEY, constant.CONFIGURATORS_CATEGORY)
 	}
-	if subscribedUrl.URLEqual(*url) {
-		return true
+	consumerInterface := consumerUrl.GetParam(constant.INTERFACE_KEY, consumerUrl.Path)
+	providerInterface := providerUrl.GetParam(constant.INTERFACE_KEY, providerUrl.Path)
+
+	if !(constant.ANY_VALUE == consumerInterface || constant.ANY_VALUE == providerInterface || providerInterface == consumerInterface) {
+		return false
 	}
-	return false
 
+	if !isMatchCategory(providerUrl.GetParam(constant.CATEGORY_KEY, constant.DEFAULT_CATEGORY),
+		consumerUrl.GetParam(constant.CATEGORY_KEY, constant.DEFAULT_CATEGORY)) {
+		return false
+	}
+
+	if !providerUrl.GetParamBool(constant.ENABLED_KEY, true) && consumerUrl.GetParam(constant.ENABLED_KEY, "") != constant.ANY_VALUE {
+		return false
+	}
+	consumerGroup := consumerUrl.GetParam(constant.GROUP_KEY, "")
+	consumerVersion := consumerUrl.GetParam(constant.VERSION_KEY, "")
+	consumerClassifier := consumerUrl.GetParam(constant.CLASSIFIER_KEY, "")
+
+	providerGroup := providerUrl.GetParam(constant.GROUP_KEY, "")
+	providerVersion := providerUrl.GetParam(constant.VERSION_KEY, "")
+	providerClassifier := providerUrl.GetParam(constant.CLASSIFIER_KEY, "")
+	//todo: public static boolean isContains(String values, String value) {
+	//        return isNotEmpty(values) && isContains(COMMA_SPLIT_PATTERN.split(values), value);
+	//    }
+	return (consumerGroup == constant.ANY_VALUE || consumerGroup == providerGroup || strings.Contains(consumerGroup, providerGroup)) && (consumerVersion == constant.ANY_VALUE || consumerVersion == providerVersion) && (consumerClassifier == "" || consumerClassifier == constant.ANY_VALUE || consumerClassifier == providerClassifier)
+}
+func isMatchCategory(category string, categories string) bool {
+	if categories == "" {
+		return category == constant.DEFAULT_CATEGORY
+	} else if strings.Contains(categories, constant.ANY_VALUE) {
+		return true
+	} else if strings.Contains(categories, constant.REMOVE_VALUE_PREFIX) {
+		return !strings.Contains(categories, constant.REMOVE_VALUE_PREFIX+category)
+	} else {
+		return strings.Contains(categories, category)
+	}
 }
 func getSubscribedOverrideUrl(providerUrl *common.URL) *common.URL {
 	newUrl := providerUrl.Clone()
@@ -255,7 +291,7 @@ func (proto *registryProtocol) Destroy() {
 	})
 }
 
-func getRegistryUrl(invoker protocol.Invoker) common.URL {
+func getRegistryUrl(invoker protocol.Invoker) *common.URL {
 	//here add * for return a new url
 	url := invoker.GetUrl()
 	//if the protocol == registry ,set protocol the registry value in url.params
@@ -263,12 +299,13 @@ func getRegistryUrl(invoker protocol.Invoker) common.URL {
 		protocol := url.GetParam(constant.REGISTRY_KEY, "")
 		url.Protocol = protocol
 	}
-	return url
+	return &url
 }
 
-func getProviderUrl(invoker protocol.Invoker) common.URL {
+func getProviderUrl(invoker protocol.Invoker) *common.URL {
 	url := invoker.GetUrl()
-	return *url.SubURL
+	//be careful params maps in url is map type
+	return url.SubURL.Clone()
 }
 func setProviderUrl(regURL *common.URL, providerURL *common.URL) {
 	regURL.SubURL = providerURL
@@ -283,11 +320,11 @@ func GetProtocol() protocol.Protocol {
 
 type wrappedInvoker struct {
 	invoker protocol.Invoker
-	url     common.URL
+	url     *common.URL
 	protocol.BaseInvoker
 }
 
-func newWrappedInvoker(invoker protocol.Invoker, url common.URL) *wrappedInvoker {
+func newWrappedInvoker(invoker protocol.Invoker, url *common.URL) *wrappedInvoker {
 	return &wrappedInvoker{
 		invoker:     invoker,
 		url:         url,
@@ -295,7 +332,7 @@ func newWrappedInvoker(invoker protocol.Invoker, url common.URL) *wrappedInvoker
 	}
 }
 func (ivk *wrappedInvoker) GetUrl() common.URL {
-	return ivk.url
+	return *ivk.url
 }
 func (ivk *wrappedInvoker) getInvoker() protocol.Invoker {
 	return ivk.invoker
@@ -310,7 +347,7 @@ func newProviderConfigurationListener(overrideListeners *sync.Map) *providerConf
 	listener := &providerConfigurationListener{}
 	listener.overrideListeners = overrideListeners
 	//TODO:error handler
-	_ = listener.BaseConfigurationListener.InitWith(config.GetProviderConfig().ApplicationConfig.Name+constant.CONFIGURATORS_SUFFIX, listener, extension.GetDefaultConfiguratorFunc())
+	listener.BaseConfigurationListener.InitWith(config.GetProviderConfig().ApplicationConfig.Name+constant.CONFIGURATORS_SUFFIX, listener, extension.GetDefaultConfiguratorFunc())
 	return listener
 }
 
@@ -331,7 +368,7 @@ type serviceConfigurationListener struct {
 func newServiceConfigurationListener(overrideListener *overrideSubscribeListener, providerUrl *common.URL) *serviceConfigurationListener {
 	listener := &serviceConfigurationListener{overrideListener: overrideListener, providerUrl: providerUrl}
 	//TODO:error handler
-	_ = listener.BaseConfigurationListener.InitWith(providerUrl.EncodedServiceKey()+constant.CONFIGURATORS_SUFFIX, listener, extension.GetDefaultConfiguratorFunc())
+	listener.BaseConfigurationListener.InitWith(providerUrl.EncodedServiceKey()+constant.CONFIGURATORS_SUFFIX, listener, extension.GetDefaultConfiguratorFunc())
 	return &serviceConfigurationListener{overrideListener: overrideListener, providerUrl: providerUrl}
 }
 
diff --git a/registry/protocol/protocol_test.go b/registry/protocol/protocol_test.go
index 72c0300dfcecdbb1bece198662c104f662517867..55b031bfdb1bea7bfb2aeff22ee6137dc6f4845d 100644
--- a/registry/protocol/protocol_test.go
+++ b/registry/protocol/protocol_test.go
@@ -19,9 +19,9 @@ package protocol
 
 import (
 	"context"
-	"github.com/apache/dubbo-go/config_center"
-
+	"github.com/apache/dubbo-go/remoting"
 	"testing"
+	"time"
 )
 
 import (
@@ -31,10 +31,11 @@ import (
 import (
 	cluster "github.com/apache/dubbo-go/cluster/cluster_impl"
 	"github.com/apache/dubbo-go/common"
-	commonConfig "github.com/apache/dubbo-go/common/config"
+	common_cfg "github.com/apache/dubbo-go/common/config"
 	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/common/extension"
 	"github.com/apache/dubbo-go/config"
+	"github.com/apache/dubbo-go/config_center"
 	"github.com/apache/dubbo-go/config_center/configurator"
 	"github.com/apache/dubbo-go/protocol"
 	"github.com/apache/dubbo-go/protocol/protocolwrapper"
@@ -44,9 +45,6 @@ import (
 func init() {
 	extension.SetDefaultConfigurator(configurator.NewMockConfigurator)
 	config.SetProviderConfig(config.ProviderConfig{ApplicationConfig: &config.ApplicationConfig{Name: "mock"}})
-	factory := &config_center.MockDynamicConfigurationFactory{}
-	dc, _ := factory.GetDynamicConfiguration(&common.URL{})
-	commonConfig.GetEnvInstance().SetDynamicConfiguration(dc)
 }
 func referNormal(t *testing.T, regProtocol *registryProtocol) {
 	extension.SetProtocol("registry", GetProtocol)
@@ -104,12 +102,12 @@ func TestOneRegRefer(t *testing.T) {
 	assert.Equal(t, count, 1)
 }
 
-func exporterNormal(t *testing.T, regProtocol *registryProtocol) {
+func exporterNormal(t *testing.T, regProtocol *registryProtocol) *common.URL {
 	extension.SetProtocol("registry", GetProtocol)
 	extension.SetRegistry("mock", registry.NewMockRegistry)
 	extension.SetProtocol(protocolwrapper.FILTER, protocolwrapper.NewMockProtocolFilter)
 	url, _ := common.NewURL(context.TODO(), "mock://127.0.0.1:1111")
-	suburl, _ := common.NewURL(context.TODO(), "dubbo://127.0.0.1:20000//", common.WithParamsValue(constant.CLUSTER_KEY, "mock"))
+	suburl, _ := common.NewURL(context.TODO(), "dubbo://127.0.0.1:20000/org.apache.dubbo-go.mockService", common.WithParamsValue(constant.CLUSTER_KEY, "mock"))
 
 	url.SubURL = &suburl
 	invoker := protocol.NewBaseInvoker(url)
@@ -117,6 +115,7 @@ func exporterNormal(t *testing.T, regProtocol *registryProtocol) {
 
 	assert.IsType(t, &protocol.BaseExporter{}, exporter)
 	assert.Equal(t, exporter.GetInvoker().GetUrl().String(), suburl.String())
+	return &url
 }
 
 func TestExporter(t *testing.T) {
@@ -199,3 +198,27 @@ func TestDestry(t *testing.T) {
 	})
 	assert.Equal(t, count2, 0)
 }
+
+func TestExportWithOverrideListener(t *testing.T) {
+	extension.SetDefaultConfigurator(configurator.NewMockConfigurator)
+	ccUrl, _ := common.NewURL(context.TODO(), "mock://127.0.0.1:1111")
+	dc, _ := (&config_center.MockDynamicConfigurationFactory{}).GetDynamicConfiguration(&ccUrl)
+	common_cfg.GetEnvInstance().SetDynamicConfiguration(dc)
+	regProtocol := newRegistryProtocol()
+	url := exporterNormal(t, regProtocol)
+	var reg *registry.MockRegistry
+	if regI, loaded := regProtocol.registries.Load(url.Key()); loaded {
+		reg = regI.(*registry.MockRegistry)
+	} else {
+		assert.Fail(t, "regProtocol.registries.Load can not be loaded")
+		return
+	}
+	overrideUrl, _ := common.NewURL(context.Background(), "override://0:0:0:0/org.apache.dubbo-go.mockService?cluster=mock1")
+	event := &registry.ServiceEvent{Action: remoting.EventTypeAdd, Service: overrideUrl}
+	reg.MockEvent(event)
+	time.Sleep(1e9)
+	newUrl := url.SubURL.Clone()
+	newUrl.Params.Set(constant.CLUSTER_KEY, "mock1")
+	v2, _ := regProtocol.bounds.Load(getCacheKey(newUrl))
+	assert.NotNil(t, v2)
+}
diff --git a/registry/zookeeper/listener_test.go b/registry/zookeeper/listener_test.go
index 7ebc32b8a50bcb38d5ac859e4216065559fbd4e5..c30e5d47d2f7d1356e20ec3b7635813ad2adb0f6 100644
--- a/registry/zookeeper/listener_test.go
+++ b/registry/zookeeper/listener_test.go
@@ -2,10 +2,15 @@ package zookeeper
 
 import (
 	"context"
+	"testing"
+)
+import (
+	"github.com/stretchr/testify/assert"
+)
+import (
 	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/config_center"
 	"github.com/apache/dubbo-go/remoting"
-	"github.com/stretchr/testify/assert"
-	"testing"
 )
 
 func Test_DataChange(t *testing.T) {
@@ -19,5 +24,5 @@ func Test_DataChange(t *testing.T) {
 type MockDataListener struct {
 }
 
-func (*MockDataListener) Process(configType *remoting.ConfigChangeEvent) {
+func (*MockDataListener) Process(configType *config_center.ConfigChangeEvent) {
 }
diff --git a/registry/zookeeper/registry_test.go b/registry/zookeeper/registry_test.go
index 5d56d4be03589b69fbc2ca258eacb5aa76353666..9cb7c011f9235f9c4840632605761a8a16278afa 100644
--- a/registry/zookeeper/registry_test.go
+++ b/registry/zookeeper/registry_test.go
@@ -64,7 +64,7 @@ func Test_Subscribe(t *testing.T) {
 	_, reg2, _ := newMockZkRegistry(&regurl, zookeeper.WithTestCluster(ts))
 
 	reg2.Register(url)
-	listener, _ := reg2.subscribe(url)
+	listener, _ := reg2.subscribe(&url)
 
 	serviceEvent, _ := listener.Next()
 	assert.NoError(t, err)
@@ -85,7 +85,7 @@ func Test_ConsumerDestory(t *testing.T) {
 	assert.NoError(t, err)
 	err = reg.Register(url)
 	assert.NoError(t, err)
-	_, err = reg.subscribe(url)
+	_, err = reg.subscribe(&url)
 	assert.NoError(t, err)
 
 	//listener.Close()
diff --git a/remoting/zookeeper/client.go b/remoting/zookeeper/client.go
index 008848ea61ba2deb1a70aba5c29da097c3c48da9..a7fc568f567d720448d0be63c592fae5f8df9bbf 100644
--- a/remoting/zookeeper/client.go
+++ b/remoting/zookeeper/client.go
@@ -65,7 +65,7 @@ func StateToString(state zk.State) string {
 	case zk.StateConnectedReadOnly:
 		return "zookeeper connect readonly"
 	case zk.StateSaslAuthenticated:
-		return "zookeeper sasl authenticaed"
+		return "zookeeper sasl authenticated"
 	case zk.StateExpired:
 		return "zookeeper connection expired"
 	case zk.StateConnected:
@@ -118,7 +118,7 @@ func ValidateZookeeperClient(container zkClientFacade, opts ...Option) error {
 	defer lock.Unlock()
 
 	if container.ZkClient() == nil {
-		//in dubbp ,every registry only connect one node ,so this is []string{r.Address}
+		//in dubbo ,every registry only connect one node ,so this is []string{r.Address}
 		timeout, err := time.ParseDuration(url.GetParam(constant.REGISTRY_TIMEOUT_KEY, constant.DEFAULT_REG_TIMEOUT))
 		if err != nil {
 			logger.Errorf("timeout config %v is invalid ,err is %v",
@@ -128,7 +128,7 @@ func ValidateZookeeperClient(container zkClientFacade, opts ...Option) error {
 		zkAddresses := strings.Split(url.Location, ",")
 		newClient, err := newZookeeperClient(opions.zkName, zkAddresses, timeout)
 		if err != nil {
-			logger.Warnf("newZookeeperClient(name{%s}, zk addresss{%v}, timeout{%d}) = error{%v}",
+			logger.Warnf("newZookeeperClient(name{%s}, zk address{%v}, timeout{%d}) = error{%v}",
 				opions.zkName, url.Location, timeout.String(), err)
 			return perrors.WithMessagef(err, "newZookeeperClient(address:%+v)", url.Location)
 		}
diff --git a/remoting/zookeeper/facade_test.go b/remoting/zookeeper/facade_test.go
index 46edd49bf7cd22011bd7dfc8b89227257c5ad2ab..58e0d69dcfd9bf645c147f6e920e56ed5f3951eb 100644
--- a/remoting/zookeeper/facade_test.go
+++ b/remoting/zookeeper/facade_test.go
@@ -75,7 +75,7 @@ func (r *mockFacade) IsAvailable() bool {
 	return true
 }
 
-func Test_Fascade(t *testing.T) {
+func Test_Facade(t *testing.T) {
 	ts, z, event, err := NewMockZookeeperClient("test", 15*time.Second)
 	assert.NoError(t, err)
 	defer ts.Stop()
diff --git a/remoting/zookeeper/listener.go b/remoting/zookeeper/listener.go
index 30347d494c14b989c43c2f3f4ea276b35d99f71b..9521ea749027582c015ac998a6f6f68d350cc3bc 100644
--- a/remoting/zookeeper/listener.go
+++ b/remoting/zookeeper/listener.go
@@ -47,9 +47,11 @@ func NewZkEventListener(client *ZookeeperClient) *ZkEventListener {
 		pathMap: make(map[string]struct{}),
 	}
 }
+
 func (l *ZkEventListener) SetClient(client *ZookeeperClient) {
 	l.client = client
 }
+
 func (l *ZkEventListener) ListenServiceNodeEvent(zkPath string, listener ...remoting.DataListener) bool {
 	l.wg.Add(1)
 	defer l.wg.Done()
@@ -72,7 +74,6 @@ func (l *ZkEventListener) ListenServiceNodeEvent(zkPath string, listener ...remo
 					content, _, _ := l.client.Conn.Get(zkEvent.Path)
 					listener[0].DataChange(remoting.Event{Path: zkEvent.Path, Action: remoting.EventTypeUpdate, Content: string(content)})
 				}
-
 			case zk.EventNodeCreated:
 				logger.Warnf("zk.ExistW(key{%s}) = event{EventNodeCreated}", zkPath)
 				if len(listener) > 0 {
@@ -100,7 +101,6 @@ func (l *ZkEventListener) handleZkNodeEvent(zkPath string, children []string, li
 				return true
 			}
 		}
-
 		return false
 	}
 
@@ -130,14 +130,14 @@ func (l *ZkEventListener) handleZkNodeEvent(zkPath string, children []string, li
 			continue
 		}
 		// listen l service node
-		go func(node string) {
+		go func(node string, zkPath string, listener remoting.DataListener) {
 			logger.Infof("delete zkNode{%s}", node)
 			if l.ListenServiceNodeEvent(node, listener) {
 				logger.Infof("delete content{%s}", node)
 				listener.DataChange(remoting.Event{Path: zkPath, Action: remoting.EventTypeDel})
 			}
 			logger.Warnf("listenSelf(zk path{%s}) goroutine exit now", zkPath)
-		}(newNode)
+		}(newNode, zkPath, listener)
 	}
 
 	// old node was deleted
@@ -205,11 +205,10 @@ func (l *ZkEventListener) listenDirEvent(zkPath string, listener remoting.DataLi
 		}
 		failTimes = 0
 		for _, c := range children {
-
 			// listen l service node
 			dubboPath := path.Join(zkPath, c)
 
-			//Save the path to avoid listen repeatly
+			//Save the path to avoid listen repeatedly
 			l.pathMapLock.Lock()
 			_, ok := l.pathMap[dubboPath]
 			l.pathMapLock.Unlock()
@@ -231,14 +230,14 @@ func (l *ZkEventListener) listenDirEvent(zkPath string, listener remoting.DataLi
 				continue
 			}
 			logger.Infof("listen dubbo service key{%s}", dubboPath)
-			go func(zkPath string) {
-				if l.ListenServiceNodeEvent(dubboPath) {
-					listener.DataChange(remoting.Event{Path: dubboPath, Action: remoting.EventTypeDel})
+			go func(zkPath string, listener remoting.DataListener) {
+				if l.ListenServiceNodeEvent(zkPath) {
+					listener.DataChange(remoting.Event{Path: zkPath, Action: remoting.EventTypeDel})
 				}
 				logger.Warnf("listenSelf(zk path{%s}) goroutine exit now", zkPath)
-			}(dubboPath)
+			}(dubboPath, listener)
 
-			//liten sub path recursive
+			//listen sub path recursive
 			go func(zkPath string, listener remoting.DataListener) {
 				l.listenDirEvent(zkPath, listener)
 				logger.Warnf("listenDirEvent(zkPath{%s}) goroutine exit now", zkPath)
@@ -259,72 +258,11 @@ func (l *ZkEventListener) listenDirEvent(zkPath string, listener remoting.DataLi
 	}
 }
 
-//
-//func (l *ZkEventListener) listenFileEvent(zkPath string, listener remoting.DataListener) {
-//	l.wg.EventTypeAdd(1)
-//	defer l.wg.Done()
-//
-//	var (
-//		failTimes int
-//		event     chan struct{}
-//		zkEvent   zk.Event
-//	)
-//	event = make(chan struct{}, 4)
-//	defer close(event)
-//	for {
-//		// get current children for a zkPath
-//		content,_, eventCh, err := l.client.Conn.GetW(zkPath)
-//		if err != nil {
-//			failTimes++
-//			if MaxFailTimes <= failTimes {
-//				failTimes = MaxFailTimes
-//			}
-//			logger.Errorf("listenFileEvent(path{%s}) = error{%v}", zkPath, err)
-//			// clear the event channel
-//		CLEAR:
-//			for {
-//				select {
-//				case <-event:
-//				default:
-//					break CLEAR
-//				}
-//			}
-//			l.client.RegisterEvent(zkPath, &event)
-//			select {
-//			case <-time.After(timeSecondDuration(failTimes * ConnDelay)):
-//				l.client.UnregisterEvent(zkPath, &event)
-//				continue
-//			case <-l.client.Done():
-//				l.client.UnregisterEvent(zkPath, &event)
-//				logger.Warnf("client.done(), listen(path{%s}) goroutine exit now...", zkPath)
-//				return
-//			case <-event:
-//				logger.Infof("get zk.EventNodeDataChange notify event")
-//				l.client.UnregisterEvent(zkPath, &event)
-//				l.handleZkNodeEvent(zkPath, nil, listener)
-//				continue
-//			}
-//		}
-//		failTimes = 0
-//
-//		select {
-//		case zkEvent = <-eventCh:
-//			logger.Warnf("get a zookeeper zkEvent{type:%s, server:%s, path:%s, state:%d-%s, err:%s}",
-//				zkEvent.Type.String(), zkEvent.Server, zkEvent.Path, zkEvent.State, StateToString(zkEvent.State), zkEvent.Err)
-//
-//			l.handleZkNodeEvent(zkEvent.Path, children, listener)
-//		case <-l.client.Done():
-//			logger.Warnf("client.done(), listen(path{%s}) goroutine exit now...", zkPath)
-//			return
-//		}
-//	}
-//}
-
 func timeSecondDuration(sec int) time.Duration {
 	return time.Duration(sec) * time.Second
 }
 
-// this func is invoked by ZkConsumerRegistry::Registe/ZkConsumerRegistry::get/ZkConsumerRegistry::getListener
+// this func is invoked by ZkConsumerRegistry::Register/ZkConsumerRegistry::get/ZkConsumerRegistry::getListener
 // registry.go:Listen -> listenServiceEvent -> listenDirEvent -> ListenServiceNodeEvent
 //                            |
 //                            --------> ListenServiceNodeEvent
@@ -355,7 +293,6 @@ func (l *ZkEventListener) ListenServiceEvent(zkPath string, listener remoting.Da
 	}
 
 	for _, c := range children {
-
 		// listen l service node
 		dubboPath = path.Join(zkPath, c)
 		content, _, err := l.client.Conn.Get(dubboPath)
@@ -366,12 +303,12 @@ func (l *ZkEventListener) ListenServiceEvent(zkPath string, listener remoting.Da
 			continue
 		}
 		logger.Infof("listen dubbo service key{%s}", dubboPath)
-		go func(zkPath string) {
-			if l.ListenServiceNodeEvent(dubboPath) {
-				listener.DataChange(remoting.Event{Path: dubboPath, Action: remoting.EventTypeDel})
+		go func(zkPath string, listener remoting.DataListener) {
+			if l.ListenServiceNodeEvent(zkPath) {
+				listener.DataChange(remoting.Event{Path: zkPath, Action: remoting.EventTypeDel})
 			}
 			logger.Warnf("listenSelf(zk path{%s}) goroutine exit now", zkPath)
-		}(dubboPath)
+		}(dubboPath, listener)
 	}
 
 	logger.Infof("listen dubbo path{%s}", zkPath)