Remote creation of MBean deployed in EAR file : loader's ObjectName ??

Question

I am trying to implement a client which connects to the MBean server
running in weblogic and then creates an instance of an MBean deployed
inside an ear file. However, since the class files of the MBean are
inside the ear file (and NOT in the "serverclasses" directory), it
looks as if I needed to specify a non-default classloader when calling
RemoteMBeanServer.createMBean(...).
--> How can I determine the ObjectName of the correct loader (on
runtime) ?
(I am running weblogic 6.1 SP2 on Win2K)
import javax.naming.Context;
import javax.management.*;
import weblogic.jndi.*;
import weblogic.management.*;
public class TestClient {
public static void main(String[] args) {
String host = "localhost";
int port = 7001;
String username = "system";
String password = "password";
String serverName = "examplesServer";
try {
// get the remote MBean server
Environment env = new Environment();
env.setProviderUrl("t3://" + host + ":" + port);
env.setSecurityPrincipal(username);
env.setSecurityCredentials(password);
Context ctx = env.getInitialContext();
MBeanHome home = (MBeanHome)ctx.lookup(MBeanHome.JNDI_NAME
+ "." + serverName);
ctx.close();
RemoteMBeanServer remoteServer =
(RemoteMBeanServer)home.getMBeanServer();
// remotely create a new instance of our MBean, deployed
in an ear file (NOT the "serverclasses" directory !!)
String domain = "examples";
String mBeanClassName = "basic.SimpleStandard";
String mBeanName = mBeanClassName + "_" +
System.currentTimeMillis();
ObjectName mBeanObjectName = new ObjectName(domain +
":Name=" + mBeanName + ",Type=" + mBeanClassName);
//ObjectName loaderObjectName = ?? that's my question ??;
//ObjectInstance mBeanInstance =
remoteServer.createMBean(mBeanClassName, mBeanObjectName,
loaderObjectName);
ObjectInstance mBeanInstance =
remoteServer.createMBean(mBeanClassName, mBeanObjectName);     // this
throws "javax.management.ReflectionException: The MBean class could
not be loaded by the default loader repository"
} catch (Exception e) {
e.printStackTrace();

Answer 1

Atlast it worked. The problem was that in my ejb-jar.xml I was referring to 2_0.dtd. I have changed that to 2.1 and it worked.
Older ejb-jar.xml had:
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "C:/jboss-4.0.1sp1/docs/dtd/ejb-jar_2_0.dtd">
I changed that to:
<ejb-jar xmlns="http://java.sun.com/xml/ns/j2ee" version="2.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd">
And it worked.
-Sathish