I fulfilled Ronalds request and added a version of the test case that uses an action handler. Our project state is, that jBPM allows only single thread execution which isn't something we can live with, but I don't have the time to investigate further. And yes, this should be fixed, right now I'm waiting for any reaction on this. Thanks for your efforts Ed! Alex View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4055979#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...