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JEXCEL Problem in copying a work book?

 
Greenhorn
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I am using UBUNTU ,

When i tried to copy the Workbook to WritableWorkbook , then i got a null pointer exception, the code is



ERROR :



If i do some editing in the MasterTemplate.xls file and save that file then if try to run the Program, then all works fine with the warning like


So can any one help me with this problem , why this one occurs and how can i handle it.


Second thing is My apologies to all because i have posted the similar problem in some other place and i did not get the proper result so if any need the link please find it below
https://coderanch.com/forums/posts/preList/568321/2582220

I cannot able to attach the Excel file Here , if any one want i can send ..

 
Greenhorn
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Hey,
did you get the solution for it because i'm also getting similar problem. reply soon
 
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Mohit, please EaseUp.
 
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