Hi All,

I am receiving the following error when trying to reference 2 Stateful Session beans (TransactionPersistenceContext & ExtendedPersistenceContext):

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Distributing D:\Test\EJB3ex511-client\dist\EJB3ex511-client.jar to [org.jboss.deployment.spi.LocalhostTarget@13aaba1]
Deploying D:\Test\EJB3ex511-client\dist\EJB3ex511-client.jar
Deploying D:\Test\EJB3ex511-client\dist\EJB3ex511-client.jar
Applicaton Deployed
Operation start started
Operation start completed
run-deploy:
run-tool:
run-jar:
log4j:WARN No appenders could be found for logger (org.jboss.security.SecurityAssociation).
log4j:WARN Please initialize the log4j system properly.
no cabin should be null: null
Master Suite
1
1
3
Updating detached cabin instance with new bed count of 4
Finding cabin to see it has been updated with a merge() on server
new bed count is: 4
javax.naming.NamingException: Could not dereference object [Root exception is java.lang.reflect.UndeclaredThrowableException]
at org.jnp.interfaces.NamingContext.getObjectInstanceWrapFailure(NamingContext.java:1150) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:705)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587)
at javax.naming.InitialContext.lookup(InitialContext.java:392)
at ejb3ex511client.Main.main(Main.java:50)
Caused by: java.lang.reflect.UndeclaredThrowableException
at $Proxy1.createProxy(Unknown Source)
at org.jboss.ejb3.JndiProxyFactory.getObjectInstance(JndiProxyFactory.java:52)
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Here are the codes for 1 Stateless (TravelAgentBean - pre-requisite) & 1 Stateful (TransactionPersistenceContextBean) session beans and a Client manipulating these beans:

@Stateless
public class TravelAgentBean implements TravelAgentRemote
{
 @PersistenceUnit(unitName="EJB3ex51") private EntityManagerFactory factory;
 @PersistenceContext(unitName="EJB3ex51") private EntityManager manager;

 public void createCabin(Cabin cabin)
 {
 manager.persist(cabin);
 }

 public Cabin findCabin(int pKey)
 {
 return manager.find(Cabin.class, pKey);
 }

 public void updateCabin(Cabin cabin)
 {
 manager.merge(cabin);
 }

@Stateful
public class TransactionPersistenceContextBean implements TransactionPersistenceContextRemote
{
 @PersistenceContext(unitName="titan", type=PersistenceContextType.TRANSACTION)
 private EntityManager manager;

 private Cabin cabin;

 public void setCabin(int pk)
 {
 cabin = manager.find(Cabin.class, pk);
 }

 public void updateBedCount(int newBedCount)
 {
 cabin.setBedCount(newBedCount);
 }

 @Remove
 public void remove()
 {
 }
}

public static void main(String[] args) {

 try
 {
 Context jndiContext = getInitialContext();
 Object ref = jndiContext.lookup("travelagent.TravelAgentRemote");
 TravelAgentRemote dao = (TravelAgentRemote)ref;

 Cabin noCabin = dao.findCabin(1);
 System.out.println("no cabin should be null: " + noCabin);

 Cabin cabin_1 = new Cabin();
 cabin_1.setId(1);
 cabin_1.setName("Master Suite");
 cabin_1.setDeckLevel(1);
 cabin_1.setShipId(1);
 cabin_1.setBedCount(3);

 dao.createCabin(cabin_1);

 Cabin cabin_2 = dao.findCabin(1);
 System.out.println(cabin_2.getName());
 System.out.println(cabin_2.getDeckLevel());
 System.out.println(cabin_2.getShipId());
 System.out.println(cabin_2.getBedCount());

 System.out.println("Updating detached cabin instance with new bed count of 4");
 cabin_2.setBedCount(4);
 dao.updateCabin(cabin_2);

 System.out.println("Finding cabin to see it has been updated with a merge() on server");
 Cabin cabin_3 = dao.findCabin(1);
 System.out.println("new bed count is: " + cabin_3.getBedCount());

 ref = jndiContext.lookup("travelagent.TransactionPersistenceContextRemote");
 TransactionPersistenceContextRemote txBean = (TransactionPersistenceContextRemote)ref;

 Cabin fetchedCabin = dao.findCabin(1);
 int oldBedCount = fetchedCabin.getBedCount();

 System.out.println("Set up transaction persistence context stateful bean");
 txBean.setCabin(1);
 txBean.updateBedCount(5);

 fetchedCabin = dao.findCabin(1);
 System.out.println("Cabin bed count will still be " + oldBedCount + ": " + fetchedCabin.getBedCount());

 System.out.println("Set up extended persistence context stateful bean");

 ref = jndiContext.lookup("travelagent.ExtendedPersistenceContextRemote");
 ExtendedPersistenceContextRemote extendedBean = (ExtendedPersistenceContextRemote)ref;

 extendedBean.setCabin(1);
 extendedBean.updateBedCount(5);

 fetchedCabin = dao.findCabin(1);
 System.out.println("Cabin bed count will be 5: " + fetchedCabin.getBedCount());

 // cleanup
 txBean.remove();
 extendedBean.remove();

 }
 catch (javax.naming.NamingException ne)
 {
 ne.printStackTrace();
 }
 }

 public static Context getInitialContext()
 throws javax.naming.NamingException
 {
 return new javax.naming.InitialContext();
 }