Has anybody tried this multirow header JTable sample?

Hi,
http://www2.gol.com/users/tame/swing/examples/JTableExamples1.html
I found a link to this sample from this forum, and I need to implement a similar functionality. I tried running the code of this sample but it returns a "NullPointerException" for the call "GetHeaderRenderer" in the class "GroupableTableHeaderUI".
Has anybody tried this, and if so, how do I get this sample to work ??
Thanks,
R.

I ran into this problem a while ago. If you are using SDK 1.3 and above, tame's example won't work. You need to some minor modification in the "GroupableTableHeaderUI" java file. I have already made it work under SDK 1.3.02. I don't have the source code at home. So, if you need to take look at my source code please let me know, I can either e-mail or post it when I return to my office.
Kenny :}

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