I was thinking now... I guess the JORAM hang may be indirectly related to this: My guess is, a missing ping happened after the server was stopped, while close was called at the same time. (What the test is about). Maybe there is a way to avoid the close and missing ping at the same time. (Maybe making sure the Server is only stopped after the sessions are closed). But this hang (replicated on PingStressTest) is probably the root cause. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4215087#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...