"jesper.pedersen" wrote : We need to target the adaptor implementation towards JBM 1.4 as it is deployed in AS 5.0 and EAP 4.3. | My comments about a JBM specific RA were referring to JBM 2.0 only. There's no way we're going to do this on the EAP 4.3 / AS 5 timescale. (EAP 4.3 code freeze has already started!). To fix the EAP 4.3 bug, the current generic JMS RA needs to be patched so it doesn't make erroneous assumptions of XA capability based on instanceof. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4142286#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...