[DrJava] [ drjava-Bugs-676558 ] Interactions JVM hangs if user leaves network

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Bugs item #676558, was opened at 2003-01-29 04:52
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Category: Interactions
Group: Makes DrJ unstable
Status: Open
Resolution: None
Priority: 6
Submitted By: Charles Reis (csreis)
Assigned to: Charles Reis (csreis)
Summary: Interactions JVM hangs if user leaves network

Initial Comment:
If the user starts DrJava while on a network and then leaves the network (or changes his IP address), the Interactions Pane will stop responding, displaying an Exception.  It will attempt to reset but never finish.

This is a problem with RMI that I am currently investigating.  RMI embeds the user's IP address in exported objects so that they can be located.  However, once UnicastRemoteObject gets the current IP address once, it will never use a different one for the life of the JVM.  This seems to prevent the user from changing or leaving networks, which is a real problem for laptop users.

I'm hoping to find a way to use a custom RMISocketFactory with UnicastRemoteObject so that it uses 127.0.0.1 for the IP address, which should always be valid.  Haven't had any luck yet...

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=438935&aid=676558&group_id=44253