I am trying to write a proof-of-concept app to use Jboss messaging service.
But i get the following expection while trying to publish a message to the topic
(no erros during server startup - jboss 4.2.3GA - Seam 2.2)
Any idea ?

javax.jms.IllegalStateException: The session is closed
09:47:27,318 ERROR [STDERR]     at org.jboss.mq.SpySession.checkClosed(SpySession.java:1149)
09:47:27,318 ERROR [STDERR]     at org.jboss.mq.SpySession.createObjectMessage(SpySession.java:280)

components.xml looks like this

  <component name="topicPublisher" class="org.jboss.seam.jms.ManagedTopicPublisher">
        <property name="topicJndiName">topic/chatroomTopic</property>
    </component>

    <component class="org.jboss.seam.remoting.messaging.SubscriptionRegistry" installed="true">
        <property name="allowedTopics">chatroomTopic</property>
    </component>

my test-jms-service.xml like this

<server>

  <mbean code="org.jboss.mq.server.jmx.Topic"
         name="jboss.mq.destination:service=Topic,name=chatroomTopic">
    <depends optional-attribute-name="DestinationManager">jboss.mq:service=DestinationManager</depends>
    <depends optional-attribute-name="SecurityManager">jboss.mq:service=SecurityManager</depends>
    <attribute name="SecurityConf">
      <security>
        <role name="guest" read="true" write="true"/>
        <role name="publisher" read="true" write="true" create="false"/>
        <role name="durpublisher" read="true" write="true" create="true"/>
      </security>
    </attribute>
  </mbean>


</server>

and my seam bean (@Scope(ScopeType.SESSION)):

        @In(create=true)
        private transient TopicPublisher topicPublisher; 
        
        @In(create=true)
        private transient TopicSession topicSession;     

and my send method

              try{
                      topicPublisher.publish( topicSession.createObjectMessage(d) );
                      
                 
              }  catch (Exception ex)
              {
                  ex.printStackTrace();
                 System.out.println("Cannot publish msg :" + d.getData());
                 
              } 

Many thanks,
Gio