kaffes appletviewer errors on SunOs 4.1.4 (with biss)

[Miki London]

Hi,
I installed kaffe-0.9.0 on sparc 10 running SunOS 4.1.4.
I used the biss-net.com package for the graphics support.
Everything works fine for things like the test HelloWorldApp or other
simple code.
For graphical applets,thoughI do manage to compile them
cleenly,I cannot run them with appletviewer because of the following 
error:

java.lang.NullPointerException
      at biss/awt/kernel/Toolkit.<init>(line unknown, pc b8bba8)
      at biss/awt/kernel/Toolkit.<init>(line unknown, pc b7b1f4)
      at java/awt/Toolkit.getDefaultToolkit(243)
      at sun/applet/AppletCopyright.<init>(36)
      at sun/applet/AppletViewer.mainInit(984)
      at sun/applet/AppletViewer.main(993)

I tried to work with the other ggraphical package: epfl.ch,
but couldn't even compile it.

Could someone show me what's wrong ?
Thanks,
Mickey.