Just to add some information on this: At JmsActivation the transactional attribute is taken in consideration. So.. even CF is a XAConnectionFActory it wouldn't use the XA method if the transactional parameter is false on a createSession request. Relevant code: | package org.jboss.resource.adapter.jms.inflow; | | public class JmsActivation implements ExceptionListener | { | | .... | | protected TopicConnection setupTopicConnection(Context ctx, String | user, String pass, String clientID) throws Exception | { | String topicFactoryRef = adapter.getTopicFactoryRef(); | log.debug("Attempting to lookup topic connection factory " + | topicFactoryRef); | TopicConnectionFactory tcf = (TopicConnectionFactory) | Util.lookup(ctx, topicFactoryRef, TopicConnectionFactory.class); | log.debug("Got topic connection factory " + tcf + " from " + | topicFactoryRef); | log.debug("Attempting to create topic connection with user " + | user); | TopicConnection result; | if (tcf instanceof XATopicConnectionFactory && | isDeliveryTransacted) | { | XATopicConnectionFactory xatcf = (XATopicConnectionFactory) | tcf; | if (user != null) | result = xatcf.createXATopicConnection(user, pass); | else | result = xatcf.createXATopicConnection(); | } | else | { | if (user != null) | result = tcf.createTopicConnection(user, pass); | else | result = tcf.createTopicConnection(); | } | if (clientID != null) | result.setClientID(clientID); | result.setExceptionListener(this); | log.debug("Using topic connection " + result); | return result; | } | | .... | } | This way a non transacted Session would be aways a plain Connection... but not for us! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4039902#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...