[jira] [Created] (PDFBOX-4346) NPE on calling save()

["Julian Isaac (JIRA)" <ji...@apache.org>]

Julian Isaac created PDFBOX-4346:
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             Summary: NPE on calling save()
                 Key: PDFBOX-4346
                 URL: https://issues.apache.org/jira/browse/PDFBOX-4346
             Project: PDFBox
          Issue Type: Bug
    Affects Versions: 1.8.16, 1.8.10
            Reporter: Julian Isaac


Opening a PDF file, making some changes to the metadata (set Producer, Creator), then calling save(String fileName) results in null pointer exception (on some PDFs).

java.lang.NullPointerException
 at org.apache.pdfbox.pdmodel.PDPageNode.updateCount(PDPageNode.java:100)
 at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1364)
 at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1350)
 at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1337)
 at my.modules.utils.MetaDataUpdater.save(MetaDataUpdater.java:146)

It's a maven project and the version of PDFBox I'm using is 1.8.16. I'm trying to save back to the same file as the one I've opened...

Not sure why it's trying to update the page count when all I'm changing is the metadata?

Seems this returns null which means the page instance variable is null, resulting in the NPE when page.setLong() is called...

    public PDPageNode getPages()
    {
        return new PDPageNode( (COSDictionary)root.getDictionaryObject( COSName.PAGES ) );
    }



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