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From Ross Gardler <ross.gard...@googlemail.com>
Subject Why wrong tracker? (was Re: [jira] Commented: (COMDEV-4) External entity in XML causing null pointer exception during DocumentBuilder.parse)
Date Thu, 03 Dec 2009 23:13:06 GMT
I wonder why we are getting so many of these. I've only ever seen one
or two incorrectly classified issues on projects. Is there something
about the name of our tracker that makes people think it's the right
place?

Ross

2009/12/3 Bertrand Delacretaz (JIRA) <jira@apache.org>:
>
>    [ https://issues.apache.org/jira/browse/COMDEV-4?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12785249#action_12785249
]
>
> Bertrand Delacretaz commented on COMDEV-4:
> ------------------------------------------
>
> Doesn't look like a Community Development issue...
>
>> External entity in XML causing null pointer exception during DocumentBuilder.parse
>> ----------------------------------------------------------------------------------
>>
>>                 Key: COMDEV-4
>>                 URL: https://issues.apache.org/jira/browse/COMDEV-4
>>             Project:           Community Development
>>          Issue Type: Question
>>            Reporter: sri kumar
>>
>> I was trying to parse a XML Document using DOM Parser.
>> I got null pointer exception while executing doc = builder.parse(xmlDataFile);
>> There were few entities in the XML data file. On removing a particular entity, i
was able to parse the file successfully
>> The entity was some thing like this
>> <!ENTITY SAMPLE.TIF SYSTEM "SAMPLE.TIF" NDATA TIF>
>> What could be the reason?
>> EDIT:
>> Here is the code:
>>         DocumentBuilderFactory aFactory = DocumentBuilderFactory.newInstance();
>>         aFactory.setValidating(false);
>>         aFactory.setFeature("http://xml.org/sax/features/namespaces", false);
>>         aFactory.setFeature("http://apache.org/xml/features/validation/schema",
false);
>>         aFactory.setIgnoringComments(true);
>>         builder = aFactory.newDocumentBuilder();
>>         doc = builder.parse(xmlDataFile);
>> This is the trace:
>>  at com.sun.org.apache.xerces.internal.dom.DeferredDocumentImpl.setChunkIndex(DeferredDocumentImpl.java:1944)
>>     at com.sun.org.apache.xerces.internal.dom.DeferredDocumentImpl.appendChild(DeferredDocumentImpl.java:644)
>>     at com.sun.org.apache.xerces.internal.parsers.AbstractDOMParser.characters(AbstractDOMParser.java:1191)
>>     at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.characters(XMLDTDValidator.java:862)
>>     at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:463)
>>     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:807)
>>     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
>>     at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:107)
>>     at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:225)
>>     at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:283)
>>     at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:180)
>>     at XMLParser.Parse(XMLParser.java:89)
>>     at Main.main(Main.java:116)
>> 89 line number points to -> doc = builder.parse(xmlDataFile);
>
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-- 
Ross Gardler

OSS Watch - supporting open source in education and research
http://www.oss-watch.ac.uk

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