No idea where this touches jBPM, and since you provide only a partial stacktrace it is hard to help out. Please provide more info View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4169333#4169333 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4169333