Sorry, just saw it. Try adding <track-connection-by-tx/> to your *-ds.xml file for XA. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4028409#4028409 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4028409