There was an issue fixed in JBPM 4.1 that resolved an issue where Join wouldnt continue after fork nodes. https://jira.jboss.org/jira/browse/JBPM-2407 When I deploy my app in Jboss with ASync nodes in the fork of the process definition, it seems to freeze at the join. However if I deploy removing the Async it carries on to completion. This is using custom nodes and not states. Could this be related? This is different to http://www.jboss.org/index.html?module=bb&op=viewtopic&t=161083&a... in the sense that even if I put a Thread.sleep(), it doesn't solve the problem of the workflow not completing. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4256630#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...