[vtkusers] vtk & java question

[bester]

Hi all,

I've written a program in java, which compiles OK, but when I try to run it I get the following error message.

Exception in thread "main" java.lang.NullPointerException
            at vtk.vtkPanel.getWindowID(vtkPanel.java:57)
            at vtk.vtkPanel.getWindowInfo(vtkPanel.java:80)
            at vtk.vtkPanel.Render(vtkPanel.java:111)
            at VCTimage.init(VCTimage.java:78)
            at VCTimage.main(VCTimage.java:28)

I am working on Windows98, with vtk3.2, jdk1.3.1_01.
I am not very experienced with this and am hoping it is obvious whats wrong.

Thanks in advance 
Carmen
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20020311/f1991938/attachment.htm>