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Posted to j-dev@xerces.apache.org by "Michael Glavassevich (JIRA)" <xe...@xml.apache.org> on 2007/07/20 22:35:06 UTC
[jira] Resolved: (XERCESJ-1260) DTDGrammar is not thread-safe, but
needs to be in order to work with grammar pools.
[ https://issues.apache.org/jira/browse/XERCESJ-1260?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Glavassevich resolved XERCESJ-1260.
-------------------------------------------
Resolution: Fixed
Fixed in SVN.
> DTDGrammar is not thread-safe, but needs to be in order to work with grammar pools.
> -----------------------------------------------------------------------------------
>
> Key: XERCESJ-1260
> URL: https://issues.apache.org/jira/browse/XERCESJ-1260
> Project: Xerces2-J
> Issue Type: Bug
> Components: DTD
> Affects Versions: 2.9.0
> Reporter: Michael Glavassevich
> Assignee: Michael Glavassevich
>
> If a DTDGrammar is pre-parsed and stored in an XMLGrammarPool which is shared across parsers running in different threads, it's possible that the content model builder will fail with one of the exceptions below. The createChildModel() needs to be synchronized (like the analagous method in CMBuilder for SchemaGrammars).
> java.lang.NullPointerException
> at org.apache.xerces.impl.dtd.models.DFAContentModel.buildDFA(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.<init>(DFAContentModel.java:215)
> at org.apache.xerces.impl.dtd.DTDGrammar.createChildModel(DTDGrammar.java:2271)
> at org.apache.xerces.impl.dtd.DTDGrammar.getElementContentModelValidator(DTDGrammar.java(Compiled Code))
> at org.apache.xerces.impl.dtd.DTDGrammar.getElementDecl(DTDGrammar.java(Compiled Code))
> at org.apache.xerces.impl.dtd.XMLDTDValidator.checkContent(XMLDTDValidator.java(Compiled Code))
> at org.apache.xerces.impl.dtd.XMLDTDValidator.handleEndElement(XMLDTDValidator.java(Compiled Code))
> at org.apache.xerces.impl.dtd.XMLDTDValidator.endElement(XMLDTDValidator.java(Compiled Code))
> at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(XMLNSDocumentScannerImpl.java(Compiled Code))
> at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java(Compiled Code))
> at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java(Compiled Code))
> at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java(Compiled Code))
> at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java(Compiled Code))
> at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java(Inlined Compiled Code))
> at org.apache.xerces.parsers.AbstractSAXParser.parse(AbstractSAXParser.java(Compiled Code))
> java.lang.ArrayIndexOutOfBoundsException: 115
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.postTreeBuildInit(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.buildDFA(DFAContentModel.java(Compiled Code))
> at org.apache.xerces.impl.dtd.models.DFAContentModel.<init>(DFAContentModel.java:215)
> at org.apache.xerces.impl.dtd.DTDGrammar.createChildModel(DTDGrammar.java:2271)
> at org.apache.xerces.impl.dtd.DTDGrammar.getElementContentModelValidator(DTDGrammar.java:1735)
> at org.apache.xerces.impl.dtd.DTDGrammar.getElementDecl(DTDGrammar.java:1237)
> at org.apache.xerces.impl.dtd.XMLDTDValidator.checkContent(XMLDTDValidator.java:1689)
> at org.apache.xerces.impl.dtd.XMLDTDValidator.handleEndElement(XMLDTDValidator.java:2024)
> at org.apache.xerces.impl.dtd.XMLDTDValidator.endElement(XMLDTDValidator.java:923)
> at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(XMLNSDocumentScannerImpl.java:673)
> at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1645)
> at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:324)
> at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:845)
> at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:768)
> at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:108)
> at org.apache.xerces.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1127)
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