diff --git a/maven-plugin-plugin/src/it/ant-since-maven-plugin/pom.xml b/maven-plugin-plugin/src/it/ant-since-maven-plugin/pom.xml
index 2240fa9..3b882f6 100644
--- a/maven-plugin-plugin/src/it/ant-since-maven-plugin/pom.xml
+++ b/maven-plugin-plugin/src/it/ant-since-maven-plugin/pom.xml
@@ -1,3 +1,22 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!--
+  ~ 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.
+-->
 <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/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
diff --git a/maven-plugin-plugin/src/it/ant-since-maven-plugin/src/main/scripts/sample.build.xml b/maven-plugin-plugin/src/it/ant-since-maven-plugin/src/main/scripts/sample.build.xml
index 227badb..a2793dc 100644
--- a/maven-plugin-plugin/src/it/ant-since-maven-plugin/src/main/scripts/sample.build.xml
+++ b/maven-plugin-plugin/src/it/ant-since-maven-plugin/src/main/scripts/sample.build.xml
@@ -1,4 +1,22 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version='1.0' encoding='UTF-8'?>
+<!--
+  ~ 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.
+-->
 <project name="ant-tasks">
   <!-- +++++++++++++++++++++++++++++++++++++++++++ -->
   <!-- Global Properties -->
diff --git a/maven-plugin-plugin/src/it/ant-since-maven-plugin/src/main/scripts/sample.mojos.xml b/maven-plugin-plugin/src/it/ant-since-maven-plugin/src/main/scripts/sample.mojos.xml
index 16753a4..94d3d90 100644
--- a/maven-plugin-plugin/src/it/ant-since-maven-plugin/src/main/scripts/sample.mojos.xml
+++ b/maven-plugin-plugin/src/it/ant-since-maven-plugin/src/main/scripts/sample.mojos.xml
@@ -1,4 +1,22 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version='1.0' encoding='UTF-8'?>
+<!--
+  ~ 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.
+-->
 <pluginMetadata>
   <mojos>
     <mojo>