jndi exceptions

I have a little test program where I have a sender thread and several
listener threads. I seem to randomly get the following exception:

javax.naming.ServiceUnavailableException: Connection lost [Root
exception is org.exolab.jms.net.connector.ResourceException:
Connection lost]
	at org.exolab.jms.jndi.InitialContextFactory.getInitialContext(InitialContextFactory.java:177)
	at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:662)
	at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)
	at javax.naming.InitialContext.init(InitialContext.java:219)
	at javax.naming.InitialContext.<init>(InitialContext.java:175)
	at com.ibm.ptest.jms.Listener.run(Listener.java:49)
Caused by: org.exolab.jms.net.connector.ResourceException: Connection lost
	at org.exolab.jms.net.multiplexer.MultiplexedManagedConnection.invoke(MultiplexedManagedConnection.java:354)
	at org.exolab.jms.net.multiplexer.MultiplexedConnection.invoke(MultiplexedConnection.java:86)
	at org.exolab.jms.net.connector.ManagedConnectionHandle$ConnectionHandle.invoke(ManagedConnectionHandle.java:263)
	at org.exolab.jms.net.orb.UnicastDelegate.invoke(UnicastDelegate.java:153)
	at org.exolab.jms.net.proxy.Proxy.invoke(Proxy.java:102)
	at org.exolab.jms.server.net.RemoteNamingProvider__Proxy.getNameParser(RemoteNamingProvider__Proxy.java:71)
	at org.exolab.jms.jndi.InitialContextFactory.getInitialContext(InitialContextFactory.java:173)
	... 5 more


Could someone explain to me what this means or how I can resolve it? I
assume one thread is unable to get the initial context while another
thread has a hold of it. Is this true?

Thanks in advance,
Michael Masters

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