John Roche created PDFBOX-2596:
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             Summary: NullPointerException in RandomAccessFileInputStream
                 Key: PDFBOX-2596
                 URL: https://issues.apache.org/jira/browse/PDFBOX-2596
             Project: PDFBox
          Issue Type: Bug
    Affects Versions: 1.8.8
            Reporter: John Roche


Line 94 contains a synchronized(file) that throws a NullPointerException under 
some strange circumstances that I haven't been able to fully identify yet.  I 
have downloaded the 1.8.8 source and the fix I used is simply to add "&& file 
!= null" to the previous if statement.
I can reproduce this bug with live user data, but I haven't been able to with 
test data yet.  It happens when I try to create a pdf with 36 pages that have 
an image, some drawn coloured boxes and some text, on each page.  If I remove 
some of the pages before I call save(File) it doesn't happen - depending on 
which pages I remove it can be ok with up to 26 pages, or break with fewer.  
Quite strange.  I suspect it's to do with the size of the data as opposed to 
the number of pages.

I will continue to investigate, since there seems to be some underlying issue, 
but for now I guess the null protection should be ok to add?

Thanks,
John



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