diff --git a/examples/consul/java-client/pom.xml b/examples/consul/java-client/pom.xml
index cf7a588d688b8c9dcc125bd4dbbf5485ca4255f3..3e54e77d492416b439c8fe441dae492eb019229a 100644
--- a/examples/consul/java-client/pom.xml
+++ b/examples/consul/java-client/pom.xml
@@ -1,3 +1,17 @@
+<?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>
 
diff --git a/examples/consul/java-client/src/main/java/dubbo/DubboService.java b/examples/consul/java-client/src/main/java/dubbo/DubboService.java
index de6b5b53355d72f678355de5773aeb1f00ec1751..4eb2d8c10ae76a3f15ab2619cc369ff3564b97af 100644
--- a/examples/consul/java-client/src/main/java/dubbo/DubboService.java
+++ b/examples/consul/java-client/src/main/java/dubbo/DubboService.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 dubbo;
 
 public interface DubboService {
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
index 748273c6ae512ce457a29089269507bdd152336e..d9880bf2c4625dbebe0225502ebf42f98b36d896 100644
--- a/examples/consul/java-client/src/main/java/dubbo/client/Main.java
+++ b/examples/consul/java-client/src/main/java/dubbo/client/Main.java
@@ -1,3 +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 dubbo.client;
 
 import org.apache.dubbo.config.ApplicationConfig;
diff --git a/examples/consul/java-server/pom.xml b/examples/consul/java-server/pom.xml
index fb7018ccf8dbb1f4f5119eb970d6e011143a8635..07a1e5bc414a6a5d3688ff9ed2624f34d3622d59 100644
--- a/examples/consul/java-server/pom.xml
+++ b/examples/consul/java-server/pom.xml
@@ -1,3 +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">
     <modelVersion>4.0.0</modelVersion>
 
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
index 10de77da797958e75a250bf2159abed48f971910..91c7b0b912f4fb27e6d108d2975bcd8a6d08f4a4 100644
--- a/examples/consul/java-server/src/main/java/dubbo/server/Main.java
+++ b/examples/consul/java-server/src/main/java/dubbo/server/Main.java
@@ -1,3 +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 dubbo.server;
 
 import org.apache.dubbo.config.ApplicationConfig;
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 9f717155d46916db47148e5e05ff0867362aa4e3..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
@@ -13,7 +13,6 @@
  */
 
 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-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/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..fb5ae1322c350f575ae83c992f1e054e80ee49d8 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;
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 2c9cfaea6e772bc004a4b0fa275028cf7892de68..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
@@ -13,7 +13,6 @@
  */
 
 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-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/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/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/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/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/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))