Issues with JMS messaging between two Glassfish Domains

Question

All -
I have a stand alone client and two Glassfish Domains - each of which has a message bean on it. I have successfully sent messages from the client to each message bean, however, I then want the message beans to be able to send messages back and forth from one another. This is where I run into a problem. For some reason, I am getting errors when trying to send a message from one message bean on Domain1 to another message bean on Domain2. Is this possible to do? Can someone help out with the exception that I am getting below?
Thanks in advance....
package mdbs;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.JMSException;
import javax.jms.MapMessage;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
* @author frostry
public class SendMessage {
    Context ctx;
    Boolean sendMessage(String connFactory, String destResource, String providerURL, Map message) {
        Connection connection = null;
        Session session = null;
        try{
            context(providerURL);
            ConnectionFactory connectionFactory = (ConnectionFactory) lookup("jms/tankConnectionFactory");  // connFactory
            Queue queue = (Queue) lookup(“jms/tankQueue”);   // destResource
            System.out.println("QueueName = "+queue.getQueueName());
            connection = connectionFactory.createConnection();
            session = connection.createSession(false,Session.AUTO_ACKNOWLEDGE);
            MessageProducer messageProducer = session.createProducer(queue);
            MapMessage mapMsg = session.createMapMessage();
                //TextMessage message = session.createTextMessage("It is a message from main class "+  ": "+ i);
                Set keys = message.keySet();
                Iterator i = keys.iterator();
                while (i.hasNext()) {
                    String key = (String) i.next();
                    String val = (String) message.get(key);
                    mapMsg.setString(key, val);
                System.out.println( "Message Is:"+ mapMsg.toString());
                messageProducer.send(mapMsg);
        } catch(JMSException e) {
            e.printStackTrace();
        } catch(Exception ex){
            ex.printStackTrace();
        return true;
    public void context(String providerURL) {
        Hashtable properties = new Hashtable(2);
        properties.put(Context.PROVIDER_URL,"iiop://127.0.0.1:1481");   // providerURL
        properties.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.appserv.naming.S1ASCtxFactory");
        try {
            ctx = new InitialContext(properties);
        } catch (NamingException ex) {
            ex.printStackTrace();
   public Object lookup(String name){
        try {
            System.out.println("About to lookup dest resource = "+name);
            return ctx.lookup(name);
        } catch (NamingException ex) {
            ex.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        return null;
from domain.xml on Domain2 - the IIOP port is 1481:
<iiop-service client-authentication-required="false">
<orb max-connections="1024" message-fragment-size="1024" use-thread-pool-ids="thread-pool-1"/>
<iiop-listener address="0.0.0.0" enabled="true" id="orb-listener-1" port="1481" security-enabled="false"/>
The output I get is:
A Message received by TankBean: MessageTitle = start
list[i] ==> 127.0.0.1:1481
corbaloc url ==> iiop:[email protected]:1481
QueueName = PhysicalQueue
java.lang.NullPointerException
at com.sun.enterprise.resource.PoolManagerImpl.getResourceFromPool(PoolManagerImpl.java:248)
at com.sun.enterprise.resource.PoolManagerImpl.getResource(PoolManagerImpl.java:176)
at com.sun.enterprise.connectors.ConnectionManagerImpl.internalGetConnection(ConnectionManagerImpl.java:337)
at com.sun.enterprise.connectors.ConnectionManagerImpl.allocateConnection(ConnectionManagerImpl.java:189)
at com.sun.enterprise.connectors.ConnectionManagerImpl.allocateConnection(ConnectionManagerImpl.java:165)
at com.sun.enterprise.connectors.ConnectionManagerImpl.allocateConnection(ConnectionManagerImpl.java:158)
at com.sun.messaging.jms.ra.DirectConnectionFactory._allocateConnection(DirectConnectionFactory.java:569)
at com.sun.messaging.jms.ra.DirectConnectionFactory.createConnection(DirectConnectionFactory.java:262)
at com.sun.messaging.jms.ra.DirectConnectionFactory.createConnection(DirectConnectionFactory.java:241)
at mdbs.SendMessage.sendMessage(SendMessage.java:43)
at mdbs.TankBean.FireMissile(TankBean.java:138)
at mdbs.TankBean.startTank(TankBean.java:88)
at mdbs.TankBean.onMessage(TankBean.java:58)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.enterprise.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1011)
at com.sun.enterprise.security.SecurityUtil.invoke(SecurityUtil.java:175)
at com.sun.ejb.containers.BaseContainer.invokeTargetBeanMethod(BaseContainer.java:2920)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4011)
at com.sun.ejb.containers.MessageBeanContainer.deliverMessage(MessageBeanContainer.java:1111)
at com.sun.ejb.containers.MessageBeanListenerImpl.deliverMessage(MessageBeanListenerImpl.java:74)
at com.sun.enterprise.connectors.inflow.MessageEndpointInvocationHandler.invoke(MessageEndpointInvocationHandler.java:179)
at $Proxy124.onMessage(Unknown Source)
at com.sun.messaging.jms.ra.OnMessageRunner.run(OnMessageRunner.java:258)
at com.sun.enterprise.connectors.work.OneWork.doWork(OneWork.java:76)
at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:555)

Answer 1

I don't have any ground-breaking news for you, just wanted to say that you're correct - you sure can send messages from one server instance to another.
I've never worked with GlassFish, but JMS is JMS and exchanging messages in the way you described should work just fine.
Let me just make sure about the obvious:
Example: instance A, port 1099, queue qA; instance B, port 2000, queue qB
To send message from A to B you create InitialContext for server B (port 2000), lookup queue qB and put a message on it.
To send message from B to A you create InitialContext for server A (port 1099), lookup queue qA and put a message on it.
I'm sure you're doing this, though.
You can use this code to print the content of JNDI tree:
     public void printList(NamingEnumeration<NameClassPair> list) {
          NameClassPair entry;
          System.out.println("JNDI tree:");
          while (list.hasMoreElements()) {
               entry = list.nextElement();
               System.out.println("name=", entry.getName(), ", class=", entry
                         .getClassName());
You call it like this: printList(initiaiContext.lookup("/"));
You can replace "/" with the path you want to list. In your case "/jms" could be more useful.
With this method you can see if all your objects (connection factories, queues, whatnot) are bound where they should be.
If all is there things should work - just keep digging.
HTH,
Mark