Problem while connecting to remote machine which is running

[seshusrinivas]

Hi,

We are running the java client from one system to connect JBOSS2.4.4 running in other system. For that we used JMSHelper which is giving the exception

"java.lang.ClassCastException:javax.naming.Reference".

This exception is coming after the statement System.out.println("init 1"); and before the statement System.out.println("init 2"); in the JMSHelper.java code given below.

Please let me know the problem we are in the middle of the project.

Thanks,

Bye
Seshu Srinivas



Below are the 2 files JMSUtility and JMSHelper.

import java.io.*;
import java.util.*;
import javax.transaction.*;
import javax.naming.*;
import javax.jms.*;

public class JMSUtility
{
public static InitialContext getInitialContext()
throws NamingException
{
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory");
env.put(Context.PROVIDER_URL,"jeelani:1099");
env.put("java.naming.rmi.security.manager","no");
env.put(Context.URL_PKG_PREFIXES,"org.jboss.naming");
return new InitialContext(env);
}

}

JMSHelper.java
-----------------

import java.io.*;
import java.util.*;
import javax.transaction.*;
import javax.naming.*;
import javax.jms.*;

import javax.mail.internet.*;

import com.insync.rnif.util.beans.JMSUtility;

Public class JMSHelper
{
public final static String QUEUE = "queue/rnifQueue";
public final static String JMS_FACTORY = "QueueConnectionFactory";

private QueueConnectionFactory qconFactory;
private QueueConnection qcon;
private QueueSession qsession;
private QueueSender qsender;
private Queue queue;
private TextMessage msg;

public JMSHelper() throws Exception
{
InitialContext ic = JMSUtility.getInitialContext();
System.out.println("context of jeelani :"+ic);
this.init(ic, QUEUE);
}

public void init(Context ctx, String queueName)
throws NamingException, JMSException
{
System.out.println("init 1");
qconFactory = (QueueConnectionFactory) ctx.lookup(JMS_FACTORY);
System.out.println("init 2");
qcon = qconFactory.createQueueConnection();
System.out.println("init 3");
qsession = qcon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
System.out.println("init 4");
queue = (Queue) ctx.lookup(queueName);
System.out.println("init 5");
qsender = qsession.createSender(queue);
System.out.println("init 6");
msg = qsession.createTextMessage();
System.out.println("init 7");
qcon.start();
}

public void send(String message) throws JMSException
{
System.out.println("init 8");
msg.setText(message);
System.out.println("init 9");
qsender.send(msg);
System.out.println("init 10");
}

public void close() throws JMSException
{
qsender.close();
qsession.close();
qcon.close();
}
}

[sebaseba]

You could first try the "Aspirin" for all JBossMQ problems: Make sure you put jboss-client.jar onto the classpath of your client application.

Also - would you not need to do an RMI narrow rather than a simple class cast (Not sure though ...)

Sebastian