Ah... I finally "get" it. If I want long running workflows, I use the JbpmContext and go off and persist it. Then I need to hold the id in session. If I only want to do stuff in memory, I cannot use the JbmpContext at all, notably not for "findLatestProcessDefinition", since there is no store. I have to recreate a ProcessDefinition from the XML definition each time and store the process definition instace in the session. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4200588#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...