I have two JBoss AS 7 instances with differernt IP(X and Y).  X instance send queue message from Singleton EJB to Queue into Y instance. Queues have the same JNDI into instances. It's queue/test.

Into X instance I create InitialContext for Y, lookup ConnectionFacory, Queue and send message. But message get X instance queue instead Y instance queue. Below X instance code:

package com.kg.interaction;

import javax.annotation.PostConstruct;
import javax.ejb.Singleton;
import javax.ejb.Startup;
import javax.jms.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import java.util.Properties;


/**
 * Created with IntelliJ IDEA.
 * User: ternovski
 * Date: 14.11.12
 * Time: 14:33
 */
@Startup
@Singleton
public class TestSingleton {

    // Set up all the default values
    private static final String DEFAULT_MESSAGE = "Hello, World!!! =))))";
    private static final String DEFAULT_CONNECTION_FACTORY = "jms/RemoteConnectionFactory";
    private static final String DEFAULT_DESTINATION = "jms/queue/test";
    private static final String DEFAULT_MESSAGE_COUNT = "1";
    private static final String DEFAULT_USERNAME = "au";
    private static final String DEFAULT_PASSWORD = "ua";
    private static final String INITIAL_CONTEXT_FACTORY = "org.jboss.naming.remote.client.InitialContextFactory";
    private static final String PROVIDER_URL = "remote://srv-oracle-06:4447";


    @PostConstruct
    public void postConstruct() throws Exception {
        ConnectionFactory connectionFactory = null;
        Connection connection = null;
        Session session = null;
        MessageProducer producer = null;
        MessageConsumer consumer = null;
        Destination destination = null;
        TextMessage message = null;
        Context context = null;

        try {
            final Properties env = new Properties();
            env.put(Context.INITIAL_CONTEXT_FACTORY, INITIAL_CONTEXT_FACTORY);
            env.put(Context.PROVIDER_URL, PROVIDER_URL);
            env.put(Context.SECURITY_PRINCIPAL, DEFAULT_USERNAME);
            env.put(Context.SECURITY_CREDENTIALS, DEFAULT_PASSWORD);
            context = new InitialContext(env);

            String connectionFactoryString = DEFAULT_CONNECTION_FACTORY;
            connectionFactory = (ConnectionFactory) context.lookup(connectionFactoryString);

            String destinationString = DEFAULT_DESTINATION;
            destination = (Destination) context.lookup(destinationString);

            connection = connectionFactory.createConnection(DEFAULT_USERNAME, DEFAULT_PASSWORD);
            session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
            producer = session.createProducer(destination);
            consumer = session.createConsumer(destination);
            connection.start();

            int count = Integer.parseInt(DEFAULT_MESSAGE_COUNT);
            String content = DEFAULT_MESSAGE;

            for (int i = 0; i < count; i++) {
                message = session.createTextMessage(content);
                producer.send(message);
            }
        } catch (Exception e) {
            throw e;
        } finally {
            if (context != null) {
                context.close();
            }
            if (connection != null) {
                connection.close();
            }
        }
    }
}