To solve this problem, I was forced to remove "transition" attribute. In principle, it is logically :-)) But, is it correct behaviour of jBpm? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4059114#4059114 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4059114