diff --git a/pom.xml b/pom.xml
index e4c82df..ca96b33 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,5 +1,5 @@
 <?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.
@@ -200,6 +200,24 @@
                     			</dependency>
                 		</dependencies>
             		</plugin>
+			<plugin>
+        			<groupId>org.apache.rat</groupId>
+        			<artifactId>apache-rat-plugin</artifactId>
+				<configuration>
+					<excludes>
+						<exclude>README.md</exclude>
+						<exclude>eclipse_template.xml</exclude>
+					</excludes>
+				</configuration>
+        			<executions>
+          				<execution>
+            					<phase>verify</phase>
+            					<goals>
+              						<goal>check</goal>
+            					</goals>
+          				</execution>
+        			</executions>
+      			</plugin>
         	</plugins>
 	</build>
 	
diff --git a/src/main/java/org/apache/gossip/manager/Clock.java b/src/main/java/org/apache/gossip/manager/Clock.java
index 0e828f7..6629c62 100644
--- a/src/main/java/org/apache/gossip/manager/Clock.java
+++ b/src/main/java/org/apache/gossip/manager/Clock.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 org.apache.gossip.manager;
 
 public interface Clock {
diff --git a/src/main/java/org/apache/gossip/manager/DataReaper.java b/src/main/java/org/apache/gossip/manager/DataReaper.java
index 4f4616b..6760685 100644
--- a/src/main/java/org/apache/gossip/manager/DataReaper.java
+++ b/src/main/java/org/apache/gossip/manager/DataReaper.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 org.apache.gossip.manager;
 
 import java.util.Map.Entry;
diff --git a/src/main/java/org/apache/gossip/manager/GossipCore.java b/src/main/java/org/apache/gossip/manager/GossipCore.java
index a87d573..258a159 100644
--- a/src/main/java/org/apache/gossip/manager/GossipCore.java
+++ b/src/main/java/org/apache/gossip/manager/GossipCore.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 org.apache.gossip.manager;
 
 import java.io.IOException;
diff --git a/src/main/java/org/apache/gossip/manager/SystemClock.java b/src/main/java/org/apache/gossip/manager/SystemClock.java
index 6d113b7..04a7080 100644
--- a/src/main/java/org/apache/gossip/manager/SystemClock.java
+++ b/src/main/java/org/apache/gossip/manager/SystemClock.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 org.apache.gossip.manager;
 
 public class SystemClock implements Clock {
diff --git a/src/main/java/org/apache/gossip/manager/Transport.java b/src/main/java/org/apache/gossip/manager/Transport.java
index 72b90df..d473e60 100644
--- a/src/main/java/org/apache/gossip/manager/Transport.java
+++ b/src/main/java/org/apache/gossip/manager/Transport.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 org.apache.gossip.manager;
 
 public class Transport {
diff --git a/src/main/java/org/apache/gossip/manager/UdpUtil.java b/src/main/java/org/apache/gossip/manager/UdpUtil.java
index a6a0174..c61769f 100644
--- a/src/main/java/org/apache/gossip/manager/UdpUtil.java
+++ b/src/main/java/org/apache/gossip/manager/UdpUtil.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 org.apache.gossip.manager;
 
 import java.nio.ByteBuffer;
diff --git a/src/main/java/org/apache/gossip/model/ActiveGossipOk.java b/src/main/java/org/apache/gossip/model/ActiveGossipOk.java
index 256ccd6..b54bf9a 100644
--- a/src/main/java/org/apache/gossip/model/ActiveGossipOk.java
+++ b/src/main/java/org/apache/gossip/model/ActiveGossipOk.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 org.apache.gossip.model;
 
 public class ActiveGossipOk extends Response {
diff --git a/src/main/java/org/apache/gossip/model/Fault.java b/src/main/java/org/apache/gossip/model/Fault.java
index ea00ea0..3ba2508 100644
--- a/src/main/java/org/apache/gossip/model/Fault.java
+++ b/src/main/java/org/apache/gossip/model/Fault.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 org.apache.gossip.model;
 
 public abstract class Fault extends Response {
diff --git a/src/test/java/org/apache/gossip/ShutdownDeadtimeTest.java b/src/test/java/org/apache/gossip/ShutdownDeadtimeTest.java
index ded1d0f..49eac46 100644
--- a/src/test/java/org/apache/gossip/ShutdownDeadtimeTest.java
+++ b/src/test/java/org/apache/gossip/ShutdownDeadtimeTest.java
@@ -82,7 +82,7 @@ public class ShutdownDeadtimeTest {
         }
         return total;
       }
-    }).afterWaitingAtMost(20, TimeUnit.SECONDS).isEqualTo(20);
+    }).afterWaitingAtMost(40, TimeUnit.SECONDS).isEqualTo(20);
 
     // shutdown one client and verify that one client is lost.
     Random r = new Random();