I downloaded the last successful build from Hudson. I had to change build.properties to designer.version=2.2-jboss7 but then it failed
[get] Can't get https://hudson.jboss.org/hudson/job/jBPM/lastSuccessfulBuild/artifact/jbpm-distribution/target//jbpm-human-task-war-5.3.0-SNAPSHOT.war
Which I can't find.