4.0.0 com.github.spirylics.xgwt x-gwt-firebase jar 2.0-alpha9 ${project.artifactId} com.github.spirylics.xgwt x-gwt 2.0-alpha9 com.google.gwt gwt-user com.github.spirylics.xgwt x-gwt-essential org.codehaus.mojo gwt-maven-plugin