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From John Hewson <j...@jahewson.com>
Subject Re: [jira] [Commented] (PDFBOX-2477) NPE in DomXmpParser.createProperty
Date Mon, 03 Nov 2014 20:18:26 GMT
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> On 3 Nov 2014, at 11:16, ueenbim@yahoo.com.INVALID wrote:
> 
> Unsubscribe
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> Sent from my BlackBerry wireless device from MTN
> 
> -----Original Message-----
> From: "ASF subversion and git services (JIRA)" <jira@apache.org>
> Date: Mon, 3 Nov 2014 19:15:34 
> To: <dev@pdfbox.apache.org>
> Reply-To: dev@pdfbox.apache.org
> Subject: [jira] [Commented] (PDFBOX-2477) NPE in DomXmpParser.createProperty
> 
> 
>    [ https://issues.apache.org/jira/browse/PDFBOX-2477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14194920#comment-14194920
] 
> 
> ASF subversion and git services commented on PDFBOX-2477:
> ---------------------------------------------------------
> 
> Commit 1636418 from [~tilman] in branch 'pdfbox/branches/1.8'
> [ https://svn.apache.org/r1636418 ]
> 
> PDFBOX-2477: avoid NPE in ResourceRef with no child elements
> 
>> 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
>> 
>>        Attachments: gs-bugzilla692826.pdf
>> 
>> 
>> 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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