Thanks for your reply. Well, the case is that in some cases, we didn't see this warning, while some of them are. So I am wondering if there are any potential issues. Just like I described in the https://jira.jboss.org/jira/browse/SOA-708, ====================== Got this error reproduced against SOA-P 4.3.0.GA. Both the standalone and embedded version. Steps to reproduce the error: 1. start the server, bin/run.sh (for embedded version, I ran bin/run.sh -c default) 2. Open another window, go to the samples/quickstarts/bpm_orchestration2 ant deploy ant deployProcess ant startProcess 3. Press 'Ctrl + C' in the server window. But the interesting thing is that this error didn't happen on jbossesb-server-4.4.GA ===================== View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4195549#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...