JMXMP Connector does not emit the JMXConnectionNotification.FAILED notification
when the server goes down.

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Description:
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* start server (SubAgent)
* start client (MasterAgent)
Press <Enter> in the SubAgent window. The subagent exits.
The MasterAgent prints the following trace:
Mar 31, 2004 4:30:46 PM GenericConenctor RequestHandler-connectionException
WARNING: java.io.EOFException
java.io.EOFException
        at java.io.ObjectInputStream$BlockDataInputStream.peekByte(ObjectInputStream.java:2435)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1245)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:324)
        at com.sun.jmx.remote.socket.SocketConnection.readMessage(SocketConnection.java:211)
        at com.sun.jmx.remote.generic.ClientSynchroMessageConnectionImpl$MessageReader.run(ClientSynchroMessageConnectionImpl.java:393)
        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)

but the JMXMPConnector does not send any JMXConnectionNotification.FAILED

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How to reproduce:
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Use the .java classes from the attached test.tar

In a first xterm start the SubAgent:
$ java -Durl="service:jmx:jmxmp://localhost:9654" SubAgent

In a second xterm start the MasterAgent:
$ java MasterAgent "service:jmx:jmxmp://localhost:9654"

Then go to the subagent window and press <Enter> to stop the subagent.

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Note: if you use RMI or IIOP instead of JMXMP everything works fine: the
      MasterAgent window displays the following message:

MSR: Received notification: javax.management.remote.JMXConnectionNotification[source=com.sun.jdmk.remote.cascading.proxy.ProxyCascadingAgent@1d64c37]

MSR: notification.getType() = jmx.remote.connection.failed

This is what should happen with JMXMP - but doesn't.