Apologies if this issue has been raised before on the forums - I couldn't see it anywhere so I thought I'd raise it. I have a relatively simple process which looks like this: http://picasaweb.google.co.uk/lh/photo/J6Ac8qDY25vjhev-GSXz1g?feat=direct... This seems to cause issues when the End State is reached, throwing the following exception: anonymous wrote : org.jbpm.JbpmException: couldn't signal without specifying a leaving transition : transition is null This appears to be caused because the process enters the first state of the first branch of the fork rather than remaining in the fork - thus creating a subprocess for the parent token as well as for each of the child tokens. When the end state is entered the EndState execution tries to end this unused subprocess - which in turn tries to notify it's parent token - which then tries to take a transition out of the end state. The only way I can find to work round this is to do something more like the following: http://picasaweb.google.co.uk/lh/photo/Q5piNh-hOCvSqdvrWeB4PQ?feat=direct... Does anyone have any ideas of a better workaround or whether I'm doing something wrong? Alternately - should I raise this as an issue? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4215368#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...