Removed duplicated Copyright Header.
diff --git a/src/main/java/org/apache/maven/plugins/clean/CleanMojo.java b/src/main/java/org/apache/maven/plugins/clean/CleanMojo.java
index ebf7fa4..749e501 100644
--- a/src/main/java/org/apache/maven/plugins/clean/CleanMojo.java
+++ b/src/main/java/org/apache/maven/plugins/clean/CleanMojo.java
@@ -18,25 +18,6 @@
  */
 package org.apache.maven.plugins.clean;
 
-/*
- * 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.
- */
-
 import java.io.File;
 import java.io.IOException;
 import org.apache.maven.execution.MavenSession;
diff --git a/src/main/java/org/apache/maven/plugins/clean/Cleaner.java b/src/main/java/org/apache/maven/plugins/clean/Cleaner.java
index edfd366..0434af5 100644
--- a/src/main/java/org/apache/maven/plugins/clean/Cleaner.java
+++ b/src/main/java/org/apache/maven/plugins/clean/Cleaner.java
@@ -18,25 +18,6 @@
  */
 package org.apache.maven.plugins.clean;
 
-/*
- * 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.
- */
-
 import static org.apache.maven.plugins.clean.CleanMojo.FAST_MODE_BACKGROUND;
 import static org.apache.maven.plugins.clean.CleanMojo.FAST_MODE_DEFER;
 
diff --git a/src/main/java/org/apache/maven/plugins/clean/Fileset.java b/src/main/java/org/apache/maven/plugins/clean/Fileset.java
index aca9902..ecd88b0 100644
--- a/src/main/java/org/apache/maven/plugins/clean/Fileset.java
+++ b/src/main/java/org/apache/maven/plugins/clean/Fileset.java
@@ -18,25 +18,6 @@
  */
 package org.apache.maven.plugins.clean;
 
-/*
- * 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.
- */
-
 import java.io.File;
 import java.util.Arrays;
 
diff --git a/src/main/java/org/apache/maven/plugins/clean/GlobSelector.java b/src/main/java/org/apache/maven/plugins/clean/GlobSelector.java
index 13df778..e5bf591 100644
--- a/src/main/java/org/apache/maven/plugins/clean/GlobSelector.java
+++ b/src/main/java/org/apache/maven/plugins/clean/GlobSelector.java
@@ -18,25 +18,6 @@
  */
 package org.apache.maven.plugins.clean;
 
-/*
- * 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.
- */
-
 import java.io.File;
 import java.util.Arrays;
 import org.apache.maven.shared.utils.io.DirectoryScanner;
diff --git a/src/main/java/org/apache/maven/plugins/clean/Selector.java b/src/main/java/org/apache/maven/plugins/clean/Selector.java
index 5abadf1..93a0695 100644
--- a/src/main/java/org/apache/maven/plugins/clean/Selector.java
+++ b/src/main/java/org/apache/maven/plugins/clean/Selector.java
@@ -18,25 +18,6 @@
  */
 package org.apache.maven.plugins.clean;
 
-/*
- * 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.
- */
-
 /**
  * Determines whether a path is selected for deletion. The pathnames used for method parameters will be relative to some
  * base directory and use {@link java.io.File#separatorChar} as separator.
diff --git a/src/test/java/org/apache/maven/plugins/clean/CleanMojoTest.java b/src/test/java/org/apache/maven/plugins/clean/CleanMojoTest.java
index 8fdcb5d..8b9e7cb 100644
--- a/src/test/java/org/apache/maven/plugins/clean/CleanMojoTest.java
+++ b/src/test/java/org/apache/maven/plugins/clean/CleanMojoTest.java
@@ -18,25 +18,6 @@
  */
 package org.apache.maven.plugins.clean;
 
-/*
- * 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.
- */
-
 import static org.apache.commons.io.FileUtils.copyDirectory;
 
 import java.io.File;
diff --git a/src/test/java/org/apache/maven/plugins/clean/Utils.java b/src/test/java/org/apache/maven/plugins/clean/Utils.java
index 8868503..f3c52b1 100644
--- a/src/test/java/org/apache/maven/plugins/clean/Utils.java
+++ b/src/test/java/org/apache/maven/plugins/clean/Utils.java
@@ -18,25 +18,6 @@
  */
 package org.apache.maven.plugins.clean;
 
-/*
- * 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.
- */
-
 import java.io.File;
 import org.codehaus.plexus.util.cli.CommandLineUtils;
 import org.codehaus.plexus.util.cli.Commandline;