Since the SpreadSheet works so well for so many, this must be a JBuilder issue. I have no experience with it, so am CC'ing visad-list. Please send all questions to visad-list@xxxxxxxxxxxxx rather than just to me. I don't know everything. Bill On Thu, 21 Aug 2003, Lourena Rocha wrote: > Hello, > > I downloaded the VisAD source code from the its home page, > and I've tried to compile it using JBuilder9, but I'm getting the > following error: > > Exception in thread "main" java.lang.NullPointerException > at visad.ss.SpreadSheet.constructSpreadsheetCells(SpreadSheet.java:2880) > at visad.ss.SpreadSheet.constructSpreadsheetCells(SpreadSheet.java:2865) > at visad.ss.SpreadSheet.<init>(SpreadSheet.java:1175) > at visad.ss.SpreadSheet.main(SpreadSheet.java:530) > > I also got the same error when I tried to compile it as described in the > Readme. In both ways I'm using the jdk1.4. > > I'm very interested in the SpreadSheet, so if you have some insight > about what is happening, I'd be grateful. And later, Lourena Rocha wrote: > I made a mistake when said that I have got that error message at > compilation time. Actually, the source code compiles and the error > occurs whenever I try to run the SpreadSheet.