Problem to connect client and server in junit test

Hi,

I have the following test ( see below)

Everything is fine until start my AlarmNotificationManager that tries
to connect to the AlarmNotificationServer that runs in a separate
thread. When I call the start() that calls connect()
my code breaks on the following line in the AlarmNotificationServer:

connector = JMXConnectorFactory.connect(url, null);

Any hints?

cheers,

//mikael

Test class
========

public void testSendAlarm()throws Exception{
         Runnable runnable = new AlarmNotificationThread();
            Thread thread = new Thread(runnable);
            thread.start();

        AlarmNotificationManager anm =
AlarmNotificationManager.getInstance();
        anm.start();

 }

public class AlarmNotificationThread implements Runnable {
        // This method is called when the thread runs
        public void run() {
         AlarmNotifcationServer.main(new String []{});
        }
    }

AlarmNotificationManager
====================

public void start(){
        connect();
    //Some other code.

}

        public void connect() {
        try {
            // Create JMX Agent URL
            JMXServiceURL url = new JMXServiceURL(
                    "service:jmx:jmxmp://localhost:1099");

            // Connect the JMXConnector
            connector = JMXConnectorFactory.connect(url, null);

            // Get the MBeanServerConnection
            mbsc = connector.getMBeanServerConnection();
        } catch (MalformedURLException mue) {
            LOG.debug("Incorrect URL", mue);
        } catch (IOException ioe) {
            LOG.debug("could not connect to server!", ioe);
        }

This is the error message that I get:

java.lang.NoSuchMethodError:
javax.management.MBeanServer.getClassLoaderRepository()Ljavax/
management/loading/ClassLoaderRepository;
    at javax.management.remote.generic.ServerIntermediary
$3.run(ServerIntermediary.java:971)
    at java.security.AccessController.doPrivileged(Native Method)
    at
javax.management.remote.generic.ServerIntermediary.getClassLoaderRepository(ServerIntermediary.java:
968)
    at javax.management.remote.generic.ServerIntermediary.access
$000(ServerIntermediary.java:72)
    at javax.management.remote.generic.ServerIntermediary
$1.run(ServerIntermediary.java:120)
    at java.security.AccessController.doPrivileged(Native Method)
    at
javax.management.remote.generic.ServerIntermediary.<init>(ServerIntermediary.java:
117)
    at javax.management.remote.generic.GenericConnectorServer
$ClientCreation.run(GenericConnectorServer.java:451)
    at com.sun.jmx.remote.opt.util.ThreadService
$ThreadServiceJob.run(ThreadService.java:208)
    at com.sun.jmx.remote.opt.util.JobExecutor.run(JobExecutor.java:59)
Oct 23, 2007 6:29:01 PM GenericConenctor RequestHandler-
connectionException