Hmm, bad formatting, trying it again: org.jboss.resource.adapter.jdbc.vendor.OracleXAExceptionFormatter View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4189544#4189544 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4189544