The following modifies the maven release build settings to preselect the jenkins username.
import hudson.model.* import hudson.maven.* import hudson.tasks.* import org.jvnet.hudson.plugins.m2release.* for(item in Hudson.instance.items) { if (item instanceof MavenModuleSet) { println("\njob $item.name "); rw = item.getBuildWrappers().get(M2ReleaseBuildWrapper.class); if (rw == null) { println("release build not configured"); } else { println("append Username: "+rw.isSelectAppendHudsonUsername()) rw.setSelectAppendHudsonUsername(true) item.save() } } }