Does anyone has any problem with listening for JMS messages on an applet running on a Java Plugin using Weblogic 6.1 sp3?

I get the following exception when message is received:

weblogic.utils.AssertionError: ***** ASSERTION FAILED *****[ Could not generate the Skeleton on the server for: weblogic.jms.dispatcher.DispatcherImpl_WLSkel ]
at weblogic.rmi.internal.BasicRuntimeDescriptor.getSkeletonClass(BasicRuntimeDescriptor.java:298)
at weblogic.rmi.internal.BasicRuntimeDescriptor.getSkeleton(BasicRuntimeDescriptor.java:311)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:295)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:274)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:22)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
<Sep 16, 2002 5:22:15 PM GMT+08:00> <Warning> <Dispatcher> <Error thrown by rmi server: 'weblogic.rmi.internal.BasicServerRef@101 - jvmid: '-950334970413033942C:127.0.0.1R:-8713516541061324332S:10.68.71.162:[7005,7005,7006,7006,7005,7006,-1]:newdomain:newdomainMserver', oid: '257', implementation: 'weblogic.jms.dispatcher.DispatcherImpl@1681ea''
weblogic.utils.AssertionError: ***** ASSERTION FAILED *****[ Could not generate the Skeleton on the server for: weblogic.jms.dispatcher.DispatcherImpl_WLSkel ]
at weblogic.rmi.internal.BasicRuntimeDescriptor.getSkeletonClass(BasicRuntimeDescriptor.java:298)
at weblogic.rmi.internal.BasicRuntimeDescriptor.getSkeleton(BasicRuntimeDescriptor.java:311)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:295)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:274)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:22)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
>