4.0.0 org.apache.bookkeeper bookkeeper 4.0.0 hedwig-protocol jar hedwig-protocol http://maven.apache.org com.google.protobuf protobuf-java 2.3.0 compile junit junit 4.8.1 test install org.apache.rat apache-rat-plugin 0.7 **/PubSubProtocol.java maven-antrun-plugin default-cli run