[PDFBOX-1642] NPE when parsing XMP schema definition with "closed Choice" value type

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.2, 1.8.9, 1.8.10
• Fix Version/s: 1.8.10, 2.0.0
• Component/s: Preflight, XmpBox
• Assignee: Tilman Hausherr
• Reporter: Petras
• Created: 17/Jun/13 11:58
• Updated: 23/Jul/15 06:35
• Resolved: 25/May/15 15:22

Description

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.