Tobias your question is both offtopic and an FAQ (the datasource connection used by JBossMQ/JBoss Messaging does not use the same transaction context as the application so XA is irrelevant. It is always local 1PC semantics). It is also not a development question. If you want to ask for help, use the user forums as described at the top of this forum. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4055261#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...