Hmm, I don't get the problem... 1.) I did run the JUnit tests locally with SUN Java JDK 6 -> no problems! 2.) This exception seems not really related to changes I made (doesn't mean it can not be interrelated): Caused by: java.lang.NullPointerException at org.jbpm.jpdl.par.ResourceAction.execute(ResourceAction.java:24) code is (NPE in second line): | URL resource = getClass().getResource("classresource.txt"); | InputStream stream = resource.openStream(); | Could it have been may run with a state where not everything was committed yet? Or other ideas? What puzzles me really is that I don't get these errors locally, even with Java 6... And they shouldn't have changed class loading basics there either... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4181176#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...