My workflow is composed of non-java (perl) tasks which are long running and may fail and would send notification of success or failure asyncronously. I want to know the best way to a) call out to the service and then enter a wait state b) recieve a notification from the service on success/failure (JMS?) c) retry the task on a timeout The main results of the task are actually written to a netapp so data isn't an issue (and of course the results are written idempotently so retry isn't a problem). I'm new to J2EE/JBOSS. Thanks, pete View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3963450#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...