diff --git a/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/AsciiBuffer.java b/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/AsciiBuffer.java
index a7fe78f..8248b1d 100644
--- a/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/AsciiBuffer.java
+++ b/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/AsciiBuffer.java
@@ -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 org.apache.activemq.protobuf;
 
 
diff --git a/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/MessageBuffer.java b/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/MessageBuffer.java
index 9e3b428..d95700d 100644
--- a/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/MessageBuffer.java
+++ b/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/MessageBuffer.java
@@ -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 org.apache.activemq.protobuf;
 
 import java.io.IOException;
diff --git a/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/MessageBufferSupport.java b/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/MessageBufferSupport.java
index 23d444e..f49a0e1 100644
--- a/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/MessageBufferSupport.java
+++ b/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/MessageBufferSupport.java
@@ -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 org.apache.activemq.protobuf;
 
 import static org.apache.activemq.protobuf.WireFormat.WIRETYPE_LENGTH_DELIMITED;
diff --git a/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/UTF8Buffer.java b/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/UTF8Buffer.java
index c069988..62c0dee 100644
--- a/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/UTF8Buffer.java
+++ b/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/UTF8Buffer.java
@@ -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 org.apache.activemq.protobuf;
 
 import java.io.UnsupportedEncodingException;
diff --git a/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/compiler/CompilerException.java b/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/compiler/CompilerException.java
index 05d1b4f..f1c24f3 100644
--- a/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/compiler/CompilerException.java
+++ b/activemq-protobuf/src/main/java/org/apache/activemq/protobuf/compiler/CompilerException.java
@@ -1,5 +1,18 @@
 /**
- * 
+ * 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 org.apache.activemq.protobuf.compiler;