It will only happen if (a) the EM gets enlisted in a tx and (b) the tx gets rolled back. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4058303#4058303 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4058303