4.0.0 net.ess3 EssentialsXParent 2.15.0 EssentialsXXMPP GPLv3 http://www.gnu.org/copyleft/gpl.html net.ess3 EssentialsX ${project.version} org.igniterealtime.smack smack 3.2.1 EssentialsXXMPP-${full.version} org.apache.maven.plugins maven-shade-plugin 2.1 package shade org.igniterealtime.smack:smack