4.0.0 org.jgroups.rolling-upgrades parent ${my.version} ../pom.xml relay-server jar RelayServer RelayServer false false org.jgroups.rolling-upgrades common ${project.version} org.jgroups jgroups ${version.jgroups} maven-assembly-plugin 3.1.0 jar-with-dependencies org.jgroups.relay_server.RelayServer make-assembly package single