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From bugzi...@apache.org
Subject [Bug 59194] org.apache.poi.ss.util.CellRangeAddressBase.getRectangle() throws NoClassDefFoundError on Google App Engine
Date Fri, 18 Mar 2016 00:46:44 GMT
https://bz.apache.org/bugzilla/show_bug.cgi?id=59194

--- Comment #7 from Javen O'Neal <onealj@apache.org> ---
(In reply to rahul.herwadkar from comment #6)
> 1) Merge cells for the table column headers.

This is why you're getting the error. I discovered that I could create a
corrupt workbook by adding a merged region B2:C3 when a workbook already
contained a merged region A1:B2, since the two merged regions intersect.

If you want to skip this intersection check, use
XSSFSheet.addMergedRegionUnsafe. I will add HSSFSheet.addMergedRegionUnsafe in
a nightly build, which should get you around this problem.

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