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https://issues.apache.org/jira/browse/PDFBOX-1642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13689333#comment-13689333
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Guillaume Bailleul commented on PDFBOX-1642:
--------------------------------------------
Can you please provide a PDF or just the xmp part of the PDF with this problem ?
Thanks
> NPE when parsing XMP schema definition with "closed Choice" value type
> ----------------------------------------------------------------------
>
> Key: PDFBOX-1642
> URL: https://issues.apache.org/jira/browse/PDFBOX-1642
> Project: PDFBox
> Issue Type: Bug
> Components: Preflight, XmpBox
> Affects Versions: 1.8.2
> Reporter: Petras
> Assignee: Guillaume Bailleul
>
> If PDF/A file includes custom metadata and its extension schema description
> containing the type "closed Choice of Text", PDF/A validation using Preflight
> fails with NPE. The extract from stack trace:
> java.lang.NullPointerException
> at
> org.apache.xmpbox.xml.PdfaExtensionHelper.populateSchemaMapping(PdfaExtensionHelper.java:214)
> at org.apache.xmpbox.xml.DomXmpParser.parse(DomXmpParser.java:193)
> at org.apache.xmpbox.xml.DomXmpParser.parse(DomXmpParser.java:106)
> at
> org.apache.pdfbox.preflight.process.MetadataValidationProcess.validate(MetadataValidationProcess.java:66)
> at
> org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:74)
> at
> org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:88)
> at
> org.apache.pdfbox.preflight.PreflightDocument.validate(PreflightDocument.java:168)
> ...
> It appears, that
> org.apache.xmpbox.xml.PdfaExtensionHelper#transformValueType() method does
> not consider "closed" or "open" directives for "Choice" value type in
> property definition.
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