Increase TransactionTimeout in jboss-service.xml or use back the value you were using ing jboss-4.0.5. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4145022#4145022 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4145022