Enlisting a JMS session as part of a distributed tx in SFSB

Question

Consider the following method in a SFSB (Seam 2.1.2, JBoss 4.2 AS, EJB 3.0, JPA 1.0, Hibernate as persistence provider). I am trying to enlist the JMS session as part of the distributed tx and testing this using both local-tx-datasource and xa-datasource (JBoss specific datasources). Apparently the JMS session is not joining the distributed tx because everything is working fine using local-tx-datasource, which it should not. I'm guessing that there are two separate tx's that are happening here instead of one distributed tx. Also, note the following:
//topicSession = conn.createTopicSession(false, TopicSession.AUTO_ACKNOWLEDGE);
topicSession = conn.createTopicSession(true, TopicSession.AUTO_ACKNOWLEDGE);     The first param in the createTopicSession() method marks it as transacted, which may be used to commit all or none of multiple JMS messages in a tx (e.g. publishing multiple topics to a message queue and guaranteeing atomicity). But I was thinking that would make JTA enlist it in the distributed tx and apparently it does not.
As per section 13.2.2 of JSR220-core:
"Behind the scenes, the EJB server enlists the session on the connection to the JMS provider
and the database connections as part of the transaction. When the transaction commits, the EJB
server and the messaging and database systems perform a two-phase commit protocol to ensure atomic
updates across all the three resources."
Somebody please explain what/how the transactional semantics are in this case when enlisting a db resource mgr and a JMS session resource mgr in a distributed tx (with or w/o Seam).  thx.
SFSB:
@Name("startConversation")
@AutoCreate
@Install(true)
@Stateful
public class TestStartConversation implements TestStartConversationLocal{
@Logger
private Log log;
@In
private EntityManager em;
@In
private EntityManager em2;
private transient TopicPublisher topicPublisher;  
private transient TopicSession topicSession;
private transient TopicConnection conn;
private transient Topic topic;
public void startup(){
log.info("in startup()");
List<Hotel> list = em.createQuery("from Hotel").getResultList();
log.info("list.size() = "+list.size());
Hotel hotel = null;
if (list != null && list.size() > 0) {
hotel = list.get(0);
hotel.setAddress("arbi's house1");
try{
InitialContext iniCtx = new InitialContext();
Object tmp = iniCtx.lookup("ConnectionFactory");
TopicConnectionFactory tcf = (TopicConnectionFactory) tmp;
conn = tcf.createTopicConnection();
topic = (Topic) iniCtx.lookup("topic/chatroomTopic");
//topicSession = conn.createTopicSession(false, TopicSession.AUTO_ACKNOWLEDGE);
topicSession = conn.createTopicSession(true, TopicSession.AUTO_ACKNOWLEDGE);            
topicPublisher = topicSession.createPublisher(topic);
topicPublisher.publish( topicSession.createObjectMessage(new ChatroomEvent("connect", "arbime")) );
topicSession.commit();            
catch(Exception e){
//noop
finally {
try {
topicSession.close();
conn.close();
catch(Exception e) {
//noop
}MDB:
@MessageDriven(activationConfig={
@ActivationConfigProperty(propertyName="destinationType", propertyValue="javax.jms.Topic"),
@ActivationConfigProperty(propertyName="destination", propertyValue="topic/chatroomTopic")
@Name("logger")
public class LoggerBean implements MessageListener
@Logger Log log;
public void onMessage(Message msg)
try
ChatroomEvent event = (ChatroomEvent) ( (ObjectMessage) msg ).getObject();
log.info( "#0: #1", event.getUser(), event.getData()==null ? event.getAction() : event.getData() );
catch (JMSException jmse)
throw new RuntimeException(jmse);
}

Answer 1

I am using the following code now with the same results. It works w/o enlistment exception which is not what I'm expecting. So apparently there's no distributed tx? How can I check to see if there is a distributed tx and what resources (if any) have been enlisted?
private transient TopicPublisher topicPublisher;  
     private transient XATopicSession topicSession;
     private transient XATopicConnection conn;
     private transient Topic topic;
     /******************************* begin methods *******************************/
     @TransactionAttribute(TransactionAttributeType.REQUIRED)
     public void startup(){
          log.info("in startup()");
          List<Hotel> list = em.createQuery("from Hotel").getResultList();
          log.info("list.size() = "+list.size());
          try{
               InitialContext iniCtx = new InitialContext();             
               XATopicConnectionFactory tcf = (XATopicConnectionFactory) iniCtx.lookup("XAConnectionFactory");
              conn = tcf.createXATopicConnection();
              topic = (Topic) iniCtx.lookup("topic/chatroomTopic");
              topicSession = conn.createXATopicSession();         
              topicPublisher = topicSession.getTopicSession().createPublisher(topic);
              topicPublisher.publish( topicSession.createObjectMessage(new ChatroomEvent("connect", "arbime")) );
          catch(Exception e){
               //noop
          finally {
               try {
                    topicSession.close();
                    conn.close();
               catch(Exception e) {
                    //noop
     }