Problem med VNCj

Hej jeg er ved at lege lidt med et VNC library der hedder VNCj,
men jeg har lidt problemer med at få det til at køre.
Status er:
Serveren starter men når en klient logger på kommer der en exception og forbindelsen lukkes, nedenstående er output fra debug vinduet..

Jeg har haft held med at køre en mindre advanceret udgave, men denne skulle gerne kunne bruge swing komponenter - lige det jeg skal bruge. Er der nogle der kan tyde lidt ud af denne fejl:

/home/molle/java/jre1.5.0_04/bin/java -classpath "/home/molle/programmering/java/MedicAid/classes:/home/molle/apps/Borland/JBuilder2005/thirdparty/junit3.8/junit.jar:/home/molle/apps/Borland/JBuilder2005/lib/unittest.jar:/home/molle/Desktop/vncj-full.zip_FILES/lib/vncj.jar:/home/molle/Desktop/vncj-full.zip_FILES/lib/vncj-demo.jar:/home/molle/java/jre1.5.0_04/lib/ext/sunjce_provider.jar:/home/molle/java/jre1.5.0_04/lib/ext/sunpkcs11.jar:/home/molle/java/jre1.5.0_04/lib/ext/dnsns.jar:/home/molle/java/jre1.5.0_04/lib/ext/localedata.jar:/home/molle/java/jre1.5.0_04/lib/jce.jar:/home/molle/java/jre1.5.0_04/lib/javaws.jar:/home/molle/java/jre1.5.0_04/lib/deploy.jar:/home/molle/java/jre1.5.0_04/lib/im/indicim.jar:/home/molle/java/jre1.5.0_04/lib/im/thaiim.jar:/home/molle/java/jre1.5.0_04/lib/jsse.jar:/home/molle/java/jre1.5.0_04/lib/charsets.jar:/home/molle/java/jre1.5.0_04/lib/plugin.jar:/home/molle/java/jre1.5.0_04/lib/rt.jar"  vncServer.vncMain
java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at gnu.rfb.server.RFBSocket.initServer(RFBSocket.java:281)
    at gnu.rfb.server.RFBSocket.run(RFBSocket.java:194)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.AbstractMethodError: gnu.awt.virtual.VirtualFramePeer.isRestackSupported()Z
    at java.awt.Component.addNotify(Unknown Source)
    at java.awt.Container.addNotify(Unknown Source)
    at javax.swing.JComponent.addNotify(Unknown Source)
    at javax.swing.JRootPane.addNotify(Unknown Source)
    at java.awt.Container.addNotify(Unknown Source)
    at java.awt.Window.addNotify(Unknown Source)
    at java.awt.Frame.addNotify(Unknown Source)
    at java.awt.Window.show(Unknown Source)
    at gnu.vnc.awt.VNCJFrame.<init>(VNCJFrame.java:36)
    at vncServer.SwingModelTest.<init>(SwingModelTest.java:18)
    ... 7 more