JBM does not rely on the database to provide XA functionality, so should not be used with an XA datasource. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4116970#4116970 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4116970