[jboss-user] [Messaging, JMS & JBossMQ] - MDB @PostConstruct error

[sandrocchio_0.1]

Hi there,
I'm trying to run a sample MDB which should send emails.
Jboss 4.0.5 GA - EJB3
anonymous wrote : I can correctly deploy the EJB Module,
  | 10:28:17,683 INFO  [Ejb3Deployment] EJB3 deployment time took: 26
  | 10:28:17,692 INFO  [JmxKernelAbstraction] installing MBean: jboss.j2ee:jar=Mail-EJBModule.jar,name=MailMDB,service=EJB3 with dependencies:
  | 10:28:17,722 INFO  [EJBContainer] STARTED EJB: eu.virtualLab.mail.MailMDB ejbName: MailMDB
  | 10:28:17,725 WARN  [MessagingContainer] Could not find the queue destination-jndi-name=queue/outGoingEmail
  | 10:28:17,727 WARN  [MessagingContainer] destination not found: queue/outGoingEmail reason: javax.naming.NameNotFoundException: outGoingEmail not bound
  | 10:28:17,729 WARN  [MessagingContainer] creating a new temporary destination: queue/outGoingEmail
  | 10:28:17,762 INFO  [outGoingEmail] Bound to JNDI name: queue/outGoingEmail
  | 10:28:17,854 INFO  [EJB3Deployer] Deployed: file:/etc/jboss-4.0.5.GA/server/default/deploy/Mail-EJBModule.jar
  | 11:27:17,659 INFO  [Ejb3Deployment] EJB3 deployment time took: 66
  | 11:27:17,670 INFO  [JmxKernelAbstraction] installing MBean: jboss.j2ee:jar=Mail-EJBModule.jar,name=MailMDB,service=EJB3 with dependencies:
  | 11:27:17,712 INFO  [EJBContainer] STARTED EJB: eu.virtualLab.mail.MailMDB ejbName: MailMDB
  | 11:27:17,760 INFO  [EJB3Deployer] Deployed: file:/etc/jboss-4.0.5.GA/server/default/deploy/Mail-EJBModule.jar

but I can't run it from a Client, belowe the stack trace from JBoss
anonymous wrote : 11:38:55,699 INFO  [ClientDeployer] Removing client ENC from: Mail-EJBModuleClient
  | 11:38:55,737 INFO  [ClientDeployer] Client ENC bound under: Mail-EJBModuleClient
  | 11:38:56,686 ERROR [JmsServerSession] Unexpected error delivering message org.jboss.mq.SpyObjectMessage {
  | Header {
  |    jmsDestination  : QUEUE.outGoingEmail
  |    jmsDeliveryMode : 2
  |    jmsExpiration   : 0
  |    jmsPriority     : 4
  |    jmsMessageID    : ID:9-11741279366781
  |    jmsTimeStamp    : 1174127936678
  |    jmsCorrelationID: null
  |    jmsReplyTo      : null
  |    jmsType         : null
  |    jmsRedelivered  : false
  |    jmsProperties   : {sent=1174127936673}
  |    jmsPropReadWrite: false
  |    msgReadOnly     : true
  |    producerClientId: ID:9
  | }
  | }
  | java.lang.RuntimeException: java.lang.NullPointerException
  |         at org.jboss.ejb3.interceptor.LifecycleInterceptorHandler.postConstruct(LifecycleInterceptorHandler.java:113)
  |         at org.jboss.ejb3.EJBContainer.invokePostConstruct(EJBContainer.java:505)
  |         at org.jboss.ejb3.AbstractPool.create(AbstractPool.java:112)
  |         at org.jboss.ejb3.StrictMaxPool.get(StrictMaxPool.java:122)
  |         at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:54)

The client code is
QueueConnection cnn = null;
  |         QueueSender sender = null;
  |         QueueSession sess = null;
  |         Queue queue = null;
  |         
  |         try {
  |             InitialContext ctx = new InitialContext();
  |             queue = (Queue) ctx.lookup("queue/outGoingEmail");
  |             QueueConnectionFactory factory =
  |                     (QueueConnectionFactory) ctx.lookup("ConnectionFactory");
  |             cnn = factory.createQueueConnection();
  |             sess = cnn.createQueueSession(false,
  |                     QueueSession.AUTO_ACKNOWLEDGE);
  |             
  |             EmailBody email = new EmailBody(new String[]{"sandro at my-domain.net"},
  |                     "test MailMDB module", "test MailMDB module");
  |             ObjectMessage msg = sess.createObjectMessage();
  |             msg.setObject(email);
  |             
  |             
  |             // The sent timestamp acts as the message's ID
  |             long sent = System.currentTimeMillis();
  |             msg.setLongProperty("sent", sent);
  |             
  |             sender = sess.createSender(queue);
  |             sender.send(msg);
  |             
  |             // sess.commit ();
  |             sess.close();
  |             
  |         } catch (JMSException ex) {
  |             ex.printStackTrace();
  |             
  |         } catch (Exception e) {
  |             e.printStackTrace();
  |         }
  | 
  | 

and the MDB
@MessageDriven(mappedName = "jms/MailMDB", activationConfig =  {
  |     @ActivationConfigProperty(propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge"),
  |     @ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue"),
  |     @ActivationConfigProperty(propertyName="destination", propertyValue="queue/outGoingEmail")
  | })
  | public class MailMDB implements MessageListener {
  |     
  |     private SessionContext context;
  |     private javax.mail.Message msg = null;
  |     Properties htmlTags = new Properties();
  |     private final Logger logger = Logger.getLogger(getClass().getName());
  |     
  |     @PostConstruct
  |     public void initialize() {
  |         logger.info("[initialize] PostConstruct. ok!");
  |         Session session =(Session)context.lookup("java:comp/env/mail/Mail");
  |         logger.info("[initialize] Mail Factory session from app. server. ok!");
from the logger the code seems to break off in the line where it try to get  a Mail session.
What's my mistake here?
Thank you in advance.

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