Fix more copyright headers
diff --git a/pom.xml b/pom.xml
index 4aebe03..a7a1dd6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,4 +1,16 @@
 <?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>