EJB3 MessageDriven not de-queueing the message

Question

Hi,
I've got a problem setting up a MessageDriven Bean (EJB3) on default JMS Queue in OC4J (10130).
If I open up the enterprise manager, I can see that the bean has been deployed, I can see the Queue contains messages, but it seems like the messages are not being read.
If I look at the MDB properties in the em, the only property that disturbs me is the destination type property, which seems unavailable, however I did configure it in the @MessageDriven annotation properties.
What am I doing wrong here?
Kind regards,
Bert
Here's my code:
Message Driven Bean
@MessageDriven(
          activationConfig = {
               @ActivationConfigProperty(propertyName="connectionFactoryJndiName",propertyValue="jms/RefacQueueConnectionFactory"),
               @ActivationConfigProperty(propertyName="destinationName",propertyValue="jms/MyQueue"),
               @ActivationConfigProperty(propertyName="destinationType",propertyValue="javax.jms.Queue"),
               @ActivationConfigProperty(propertyName="messageSelector",propertyValue="RECIPIENT = 'MDB'") } )
public class TestMDB implements MessageListener, TimedObject {
          public void onMessage(Message message) {
                    System.out.println("onMessage() - " + message);
          public void ejbTimeout(Timer timer) {
               System.out.println("EJB 3.0: Timer with MDB");
               System.out.println("ejbTimeout() called at: " + new Date(System.currentTimeMillis()));
Client putting a test message on the queue
          ConnectionFactory factory = (ConnectionFactory) context.lookup("jms/RefacQueueConnectionFactory");
          Queue queue = (Queue) context.lookup("jms/MyQueue");
          Connection connection = factory.createConnection();
          Session session = connection.createSession(true, Session.AUTO_ACKNOWLEDGE);
          MessageProducer sender = session.createProducer(queue);
          connection.start();
          System.out.println("Sending Message to the queue");
sender.send(session.createTextMessage("HelloWorld"));
session.commit();
View from the Enterprise manager
Message Driven Bean: "TestMDB"
General
Name "TestMDB"
State Up
Start Time Jul 7, 2006 7:25:40 AM CEST
Messaging Type javax.jms.MessageListener
Transactions Container
Transaction Support NotSupported
Performance
Messages Dequeued 0
Messages Rolled Back 0
Average Message Processing Time (seconds) 0.00
Number of Available Instances 0
Number of Used Instances 0
Message Properties
Uses Resource Adapter as Listener False
Destination Type Unavailable
Destination JNDI Location jms/MyQueue
Connection Factory JNDI Location jms/RefacQueueConnectionFactory
Subscription Type NonDurable
Subscription Name Unavailable
Listener Threads 1
Message Selector RECIPIENT = 'MDB'
Acknowledgement Mode AUTO_ACKNOWLEDGE

Answer 1

Well, I got the problem myself.
Just for the record, here's what I did wrong:
I forgot to put the RECIPIENT parameter on the message before sending it to the destination
Message message = session.createMessage();
message.setStringProperty("RECIPIENT", "MDB");
publisher.send(message);
I have no idea if this property is JMS spec, or Oracle specific... in my previous experience with jms, I never had to set this property (if I recall correctly). (this is the first time I'm using jms in an OC4J container.)
grtz