Probel with running jswat, java.lang.NullPointerException thrown during JVM load.

Hi, 
 I have downloaded Jswat and trying to get it run under Linux. My
system is:
- Linux Debian 3.0;
- j2sdk 1.4.1 from BlackDown.org

Once I start Jswat, choose to open new session with "tutorial" class
file I'm getting on console window following exception report:

java.lang.NullPointerException
        at java.net.InetAddress.cacheAddress(InetAddress.java:648)
        at java.net.InetAddress.cacheAddress(InetAddress.java:633)
        at
java.net.InetAddress.getAddressFromNameService(InetAddress.java:1016)
        at java.net.InetAddress.getLocalHost(InetAddress.java:1125)
        at
com.sun.tools.jdi.SocketTransport.startListening(SocketTransport.java:91)
        at
com.sun.tools.jdi.SocketTransport.startListening(SocketTransport.java:86)
        at
com.sun.tools.jdi.SunCommandLineLauncher.launch(SunCommandLineLauncher.java:105)
        at
com.bluemarsh.jswat.VMConnection.launchDebuggee(VMConnection.java:438)
        at
com.bluemarsh.jswat.action.VMStartAction.actionPerformed(VMStartAction.java:219)
        at (... part removed for clarity)
java.awt.EventDispatchThread.run(EventDispatchThread.java:99)

Does anyone knows what should I do to get it run? With windows98 JSwat
was running nice, so it is probably something wrong with my system
config.
Any advice will be welcommed. 
 regards,
   Tomasz Sztejka.
   


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