[Mc4j-development] [ mc4j-Bugs-916667 ] ClassCastException

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Bugs item #916667, was opened at 2004-03-15 06:43
Message generated for change (Comment added) made by nobody
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=493495&aid=916667&group_id=60228

Category: Connections
Group: MC4J 1.2b1
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: ClassCastException

Initial Comment:
Created MBeanServer with ID: 1e4cbc4:fb4ef2d33c:-
8000:1096782-D:1

RMIConnectorServer started at: 
service:jmx:rmi://localhost/jndi/jrmp


When trying to connect to server via MC4J (V1.2) the 
following error occurs:

A java.lang.ClassCastException exception has occurred. 

java.lang.ClassCastException
at mx4j.rmi.jrmp.JRMPConnector.narrow
(JRMPConnector.java:)

The connection properties are:

Initial Context Factory: 
com.sun.jndi.rmi.registry.RegistryContextFactory

JNDI Name: jmrp

Server URL: rmi://localhost:1099

Connection Type: MX4J



Source Code:

import java.io.IOException;
import java.net.MalformedURLException;
import java.util.HashMap;
import java.util.Map;

import 
javax.management.InstanceAlreadyExistsException;
import javax.management.InstanceNotFoundException;
import javax.management.MBeanException;
import javax.management.MBeanRegistrationException;
import javax.management.MBeanServer;
import javax.management.MBeanServerFactory;
import 
javax.management.MalformedObjectNameException;
import javax.management.NotCompliantMBeanException;
import javax.management.ObjectName;
import javax.management.ReflectionException;
import javax.management.remote.JMXConnectorServer;
import 
javax.management.remote.JMXConnectorServerFactory;
import javax.management.remote.JMXServiceURL;
import javax.naming.Context;

/**
 * @author Michael Behnck
 */
public class JMXConn
{

	public static void main(String[] args)
	{
//		Create a MBeanServer
		MBeanServer server = 
MBeanServerFactory.createMBeanServer();
			      
		try
		{
//			Create and start the naming 
service
			ObjectName naming = new 
ObjectName("Naming:type=rmiregistry");
			server.createMBean
("mx4j.tools.naming.NamingService", naming, null);
			server.invoke
(naming, "start", null, null);
		}
		catch 
(InstanceAlreadyExistsException e)
		{
			// TODO Auto-generated 
catch block
			e.printStackTrace();
		}
		catch (MBeanRegistrationException e)
		{
			// TODO Auto-generated 
catch block
			e.printStackTrace();
		}
		catch (NotCompliantMBeanException 
e)
		{
			// TODO Auto-generated 
catch block
			e.printStackTrace();
		}
		catch (InstanceNotFoundException e)
		{
			// TODO Auto-generated 
catch block
			e.printStackTrace();
		}
		catch (ReflectionException e)
		{
			// TODO Auto-generated 
catch block
			e.printStackTrace();
		}
		catch (MBeanException e)
		{
			// TODO Auto-generated 
catch block
			e.printStackTrace();
		}
		catch 
(MalformedObjectNameException e)
		{
			// TODO Auto-generated 
catch block
			e.printStackTrace();
		}

		JMXServiceURL address = null;
		
		try
		{
//			The address of the 
connector
			address = new 
JMXServiceURL("rmi", "localhost", 0, "/jndi/jrmp");
		}
		catch (MalformedURLException e2)
		{
			// TODO Auto-generated 
catch block
			e2.printStackTrace();
		}

//		Initial Context and Provider URL
		Map environment = new HashMap();
		environment.put
(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.rmi.r
egistry.RegistryContextFactory");
		environment.put
(Context.PROVIDER_URL, "rmi://localhost:1099");

		JMXConnectorServer cntorServer;
		
		try
		{
//			Create and start the 
JMXConnectorServer
			cntorServer = 
JMXConnectorServerFactory.newJMXConnectorServer
(address, environment, server);
			cntorServer.start();
		}
		catch (IOException e1)
		{
			// TODO Auto-generated 
catch block
			e1.printStackTrace();
		}
	}
}




Thank you,
                     Michael Behnck

----------------------------------------------------------------------

Comment By: Nobody/Anonymous (nobody)
Date: 2004-03-15 23:50

Message:
Logged In: NO 

So what would I have to do in order to make a "JSR-160" 
connection with MC4J (what I'm supposed to do).

Everything's working fine when using the MX4J 1.1 RMI 
connector (JRMP adaptor).

Cheers,
                 Michael

----------------------------------------------------------------------

Comment By: Greg Hinkle (ghinkl)
Date: 2004-03-15 17:53

Message:
Logged In: YES 
user_id=773314

It looks like your creating a JSR-160 style adaptor and then
trying to connect the proprietary mx4j 1.1 rmi connector to
it. You want to select "JSR-160" from the connection type in
MC4J for this type of connection. 

(I suppose this is now misleading now that MX4J support
JSR-160 style service adaptors. I'll have to fix that.hu)

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=493495&aid=916667&group_id=60228