org.omg.CORBA.OBJECT_NOT_EXIST

####<Jun 19, 2013 2:17:38 PM CEST> <Warning> <RMI> <hqchnesoa108> <osbpr1as> <[ACTIVE] ExecuteThread: '14' for queue: 'weblogic.kernel.Default (self-tuning)'> <<WLS Kernel>> <> <465bebdd30aa6335:3ab6711e:13f5b98936f:-8000-000000000000794c> <1371644258776> <BEA-080005> <Exception thrown by rmi server: sending exception
 org.omg.CORBA.OBJECT_NOT_EXIST: No such oid: 481  vmcid: OMG  minor code: 1  completed: No.
org.omg.CORBA.OBJECT_NOT_EXIST: No such oid: 481  vmcid: OMG  minor code: 1  completed: No
        at weblogic.iiop.EndPointImpl.replyNoSuchObject(EndPointImpl.java:446)
        at weblogic.iiop.EndPointImpl.handleIncomingRequest(EndPointImpl.java:853)
        at weblogic.iiop.EndPointImpl.processMessage(EndPointImpl.java:508)
        at weblogic.iiop.EndPointImpl.processFragment(EndPointImpl.java:652)
        at weblogic.iiop.EndPointImpl.processMessage(EndPointImpl.java:550)
        at weblogic.iiop.EndPointImpl.handleMessage(EndPointImpl.java:500)
        at weblogic.iiop.EndPointImpl.dispatch(EndPointImpl.java:324)
        at weblogic.iiop.ConnectionManager.dispatch(ConnectionManager.java:126)
        at weblogic.iiop.MuxableSocketIIOP.dispatch(MuxableSocketIIOP.java:302)
        at weblogic.socket.BaseAbstractMuxableSocket.dispatch(BaseAbstractMuxableSocket.java:298)
        at weblogic.socket.SocketMuxer.readReadySocketOnce(SocketMuxer.java:950)
        at weblogic.socket.SocketMuxer.readReadySocket(SocketMuxer.java:898)
        at weblogic.socket.PosixSocketMuxer.processSockets(PosixSocketMuxer.java:130)
        at weblogic.socket.SocketReaderRequest.run(SocketReaderRequest.java:29)
        at weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:42)
        at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:145)
        at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:117)

This started to happen on the Admin server after a network hiccup which requested a restart of the MS 1,2,3,4 in sparse order, some before and some after the Admin.

Try enabling all the debugIIOP flags,

-Dweblogic.debug.DebugIIOPDetail=true
-Dweblogic.debug.DebugIIOPMarshal=true
-Dweblogic.debug.DebugIIOPTransport=true

and setting the System Property -Dweblogic.kernel.debug=true and restart the server.