Tilman Hausherr created PDFBOX-2477:
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Summary: NPE in DomXmpParser.createProperty
Key: PDFBOX-2477
URL: https://issues.apache.org/jira/browse/PDFBOX-2477
Project: PDFBox
Issue Type: Bug
Components: XmpBox
Affects Versions: 1.8.7, 1.8.8, 2.0.0
Reporter: Tilman Hausherr
Assignee: Tilman Hausherr
Fix For: 1.8.8, 2.0.0
I get this NPE with the attached file:
{code}
Exception in thread "main" java.lang.NullPointerException
at
org.apache.xmpbox.xml.DomXmpParser.createProperty(DomXmpParser.java:352)
at
org.apache.xmpbox.xml.DomXmpParser.parseDescriptionRoot(DomXmpParser.java:292)
at org.apache.xmpbox.xml.DomXmpParser.parse(DomXmpParser.java:206)
at org.apache.xmpbox.xml.DomXmpParser.parse(DomXmpParser.java:114)
at
org.apache.pdfbox.preflight.process.MetadataValidationProcess.validate(MetadataValidationProcess.java:67)
at
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
at
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:88)
at
org.apache.pdfbox.preflight.PreflightDocument.validate(PreflightDocument.java:168)
at
org.apache.pdfbox.preflight.Validator_A1b.runSimple(Validator_A1b.java:161)
at
org.apache.pdfbox.preflight.Validator_A1b.main(Validator_A1b.java:126)
{code}
The cause is this:
{code}
<xapMM:DerivedFrom rdf:parseType="Resource"/>
{code}
According to the XMP spec, that part can have missing elements, i.e. it is not
an error. So I'll just add a null check.
There are more potiential NPE risks in that code, however I prefer to get
examples.
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