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https://issues.apache.org/jira/browse/PDFBOX-4346?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tilman Hausherr closed PDFBOX-4346.
-----------------------------------
Resolution: Cannot Reproduce
Closing because we can't reproduce it and no further feedback.
> NPE on calling save()
> ---------------------
>
> Key: PDFBOX-4346
> URL: https://issues.apache.org/jira/browse/PDFBOX-4346
> Project: PDFBox
> Issue Type: Bug
> Affects Versions: 1.8.10, 1.8.16
> Reporter: Julian Isaac
> Priority: Major
>
> 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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