azureus won't start with libgcj

[sean]

Trying to run azureus-2.4.0.2 with libgcj-4.1.1-1.fc5 on 
fc5, amd64:

DEBUG::Sat Jun 03 20:46:09 EDT 
2006::org.gudy.azureus2.core3.util.DebugLight::printStackTrace::43:
   java.lang.IllegalArgumentException: Argument cannot be null
    at org.eclipse.swt.SWT.error(SWT.java:2926)
    at org.eclipse.swt.SWT.error(SWT.java:2866)
    at org.eclipse.swt.SWT.error(SWT.java:2837)
    at org.eclipse.swt.widgets.Widget.error(Widget.java:409)
    at 
org.eclipse.swt.widgets.Widget.checkParent(Widget.java:282)
    at org.eclipse.swt.widgets.Widget.<init>(Widget.java:174)
    at org.eclipse.swt.widgets.Item.<init>(Item.java:62)
    at org.eclipse.swt.custom.CTabItem.<init>(CTabItem.java:34)
    at org.gudy.azureus2.ui.swt.Tab.<init>(Tab.java:101)
    at org.gudy.azureus2.ui.swt.Tab.<init>(Tab.java:92)
    at 
org.gudy.azureus2.ui.swt.mainwindow.MainWindow.showMyTorrents(MainWindow.java:952)
    at 
org.gudy.azureus2.ui.swt.mainwindow.MainWindow.openMainWindow(MainWindow.java:834)
    at 
org.gudy.azureus2.ui.swt.mainwindow.MainWindow.access$1200(MainWindow.java:82)
    at 
org.gudy.azureus2.ui.swt.mainwindow.MainWindow$32.runSupport(MainWindow.java:1703)
    at 
org.gudy.azureus2.core3.util.AERunnable.run(AERunnable.java:43)
    at 
org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:36)
    at 
org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:123)
    at 
org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:2844)
    at 
org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2575)
    at 
org.gudy.azureus2.ui.swt.mainwindow.SWTThread.<init>(SWTThread.java:114)
    at 
org.gudy.azureus2.ui.swt.mainwindow.SWTThread.createInstance(SWTThread.java:58)
    at 
org.gudy.azureus2.ui.swt.mainwindow.Initializer.<init>(Initializer.java:111)
    at org.gudy.azureus2.ui.swt.Main.<init>(Main.java:147)
    at org.gudy.azureus2.ui.swt.Main.main(Main.java:162)

Any body got azureus working?

sean