Regarding thread dump, let me google that for you: http://www.google.com/search?hl=en&q=java+thread+dump Please do not post the result here. Instead, examine the thread dump looking for the busy thread(s). Then you will know what code is probably in a loop, though you might have to take several thread dumps a few seconds apart to verify this. Also, until this is running, start the app server from the command line. Do not use Eclipse!!! View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4242693#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...