[jira] Commented: (PDFBOX-578) NPE NullPointerException in PDPageNode.getCount

["Adam Nichols (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PDFBOX-578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12906878#action_12906878 ] 

Adam Nichols commented on PDFBOX-578:
-------------------------------------

Although the patch avoids the NPE, I think it hides the problem (which is that the PDF can't be parsed because it's non-conforming).  If we merge file xyz.pdf with SWMC_WarehouseAgreement-V1.pdf and no exception is thrown, we'd naturally expect that the files were merged correctly, however that's not the case here.  I'd rather see an exception be thrown if there was a critical error like this.  I was hoping that this task would lead to correcting the parser (or whatever it is that's wrong) so the document could be processed without error.

I came back to this issue and tried to decompress it using pdftk and I found that could not handle the errors in this PDF either.  If I could get  	SWMC_WarehouseAgreement-V1.pdf in an uncompressed state (and the problem still exists), I could manually trace through the PDF to find out where the issue lies.  But unless someone can figure out some way to decompress it, I think we should consider this one closed.  The other PDF is working, which indicates that the issue was resolved for some PDFs.

> NPE NullPointerException in PDPageNode.getCount
> -----------------------------------------------
>
>                 Key: PDFBOX-578
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-578
>             Project: PDFBox
>          Issue Type: Bug
>    Affects Versions: 0.8.0-incubator
>            Reporter: James Wilson
>         Attachments: 0000462526-0000000000-04cv00399.pdf, FormI-9-English.pdf, nullcount.patch, SWMC_WarehouseAgreement-V1.pdf
>
>
> java.lang.NullPointerException
>         at org.apache.pdfbox.pdmodel.PDPageNode.getCount(PDPageNode.java:102)
>         at org.apache.pdfbox.pdmodel.PDDocument.getNumberOfPages(PDDocument.java:925)
>         at us.fed.nmcourt.common.pdfbox.NmdLucenePDFDocument.addContent(NmdLucenePDFDocument.java:558)
>         at us.fed.nmcourt.common.pdfbox.NmdLucenePDFDocument.convertDocument(NmdLucenePDFDocument.java:346)
>         at us.fed.nmcourt.common.pdfbox.NmdLucenePDFDocument.getDocument(NmdLucenePDFDocument.java:444)
>         at us.fed.nmcourt.common.pdfbox.NmdLucenePDFDocument.main(NmdLucenePDFDocument.java:758)
> Attached is an example of pdf that causes this exception.

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