Hang of RMI call when LAN connection removed

I have a client server application with comms using RMI across a TCP/IP LAN. We are in test at the moment and one of the tests is to ensure that when the LAN connection is removed, the client application handles it correctly.
We have discovered that if we pull the LAN whilst an RMI call is in progress, the call never returns, even if we subsequently plug the LAN back in. Why should this be? I would have expected a RemoteException as soon as I pull the LAN out. How come the thread gets deadlocked?
Note that we are running JRE 1.2 on the client (they are soon to be updated but it's 1400 remote, unattended sites so it's an expensive process to update to a recent JRE).
Thanks
Mat

Thanks ejp - couple of dollars coming your way. Be a couple more if you (or anyone else) can help further.
Firstly, how would I set this property in the code?
Secondly, would it be set in the client or the factory (yes we do have one)? If it's in the factory, will that help me from the client side (that's where I need it to work). I looked up the responseTimeout property and it looks like this is more for the server to close incoming connections. The problem I have is on the client side - I need the client (i.e. that is making the RMI call via an exported remote object) to be able to kill off a call that has going too long (for instance because it can't detect the closed TCP connection).
Maybe I've misunderstood the documentation I've found but that's how I read it.
Thanks again!
Mat

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Hang of RMI call when LAN connection removed

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