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rmi problems with latest visad.jar

Hi,
When I switched to the latest visad.jar file I started getting exceptions like below. It works fine with an older version of visad.jar. I have been careful to make sure the rmiregistry, server, and client are all running with the same classpath. I have a RemoteServerImpl (with RemoteDataReferenceImpls) bound to my server but when I try to access the data from my client:
java.rmi.UnmarshalException: error unmarshalling return; nested exception is: java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: java.lang.Object 
        at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:164)
        at visad.RemoteFieldImpl_Stub.local(Unknown Source)
at edu.ucar.rap.vmet.VMETDisplayer.getSourceData(VMETDisplayer.java:700) at edu.ucar.rap.vmet.GriddedDisplayer.processData(GriddedDisplayer.java:135) at edu.ucar.rap.vmet.VMETDisplayer.updateData(VMETDisplayer.java:1229) at edu.ucar.rap.vmet.VMETDisplayer$UpdateCell.doAction(VMETDisplayer.java:1154) 
        at visad.ActionImpl.run(ActionImpl.java:353)
        at visad.util.ThreadPool$ThreadMinnow.run(ThreadPool.java:95)
Caused by: java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: java.lang.Object at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1268) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1830) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1756) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1636) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1264) 
        at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1593)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1261) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1830) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1756) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1636) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1264) 
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:322)
        at sun.rmi.server.UnicastRef.unmarshalValue(UnicastRef.java:297)
        at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:146)
        ... 7 more
Caused by: java.io.NotSerializableException: java.lang.Object
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1054) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1330) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1302) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1245) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1224) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1050) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1330) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1302) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1245) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278) 
        at sun.rmi.server.UnicastRef.marshalValue(UnicastRef.java:265)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:271) 
        at sun.rmi.transport.Transport$1.run(Transport.java:148)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701) 
        at java.lang.Thread.run(Thread.java:536)


Any ideas?

Thanks,
Doug

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| Doug Lindholm, Software Engineer          |  E-mail: lind@xxxxxxxx   |
| Research Applications Program             |   Phone: 303-497-8374    |
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