[ 
https://issues.apache.org/jira/browse/PDFBOX-1642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Petras reopened PDFBOX-1642:
----------------------------

Sorry for being late to test whether this issue was resolved. We recently 
updated PDFBox to latest stable version v1.8.9 and I reenabled disabled test 
case on this issue. Unfortunatelly, this issue is still present, though I get 
NPE on "close Choice of Text" in another place:
{code}
java.lang.NullPointerException
        at 
org.apache.xmpbox.xml.PdfaExtensionHelper.populateSchemaMapping(PdfaExtensionHelper.java:219)
        at org.apache.xmpbox.xml.DomXmpParser.parse(DomXmpParser.java:195)
        at org.apache.xmpbox.xml.DomXmpParser.parse(DomXmpParser.java:106)
...
{code}

> 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
>         Attachments: metadata_with_schema.zip
>
>
> 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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