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• Commented: (XERCESJ 589) Bug with pattern restriction on long strings
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• Commented: (XERCESJ 1066) Restriction+choice+substitutionGroup error
• Commented: (XERCESJ 1178) Error getting prefix for an attribute with no n
• Updated: (XERCESJ 1244) XMLSchemaValidator does not contribute element 's
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• retain exception stack traces
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• Commented: (XERCESJ 1203) NPE in XMLDTDProcessor
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• : xml commons external 1 3 04 Release on Wednesday, November 22nd
• Commented: (XERCESJ 1247) Incorrect location information on SAX when usin
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• : xml commons resolver 1 2 Release on Wednesday, November 22nd
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• Updated: (XERCESJ 122) XMLSchemaValidator does not contribute element 's d
• Performance problem under load Xerces with Weblogic 9 x
• remove ignored memory allocation
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• Commented: (XERCESJ 1197) Code cleanup for org apache xml serialize
• Commented: (XERCESJ 1201) Initial contribution for StAX Event API
• Updated: (XERCESJ 1061) Regex "$ " and "^ " characters treated as special c
• Commented: (XERCESJ 1199) SAXXMLStreamReader should attempt to register a
• Commented: (XERCESJ 1061) Regex "$ " and "^ " characters treated as special
• Updated: (XERCESJ 589) Bug with pattern restriction on long strings
• StackOverflow
• xerces Range unnecessarily not garbage collectable if not detached
• Updated: (XERCESJ 1178) Error getting prefix for an attribute with no nam
• Bug in xs:redefine
• Commented: (XERCESJ 1204) Can not set XMLEntityResolver for LSParser
• Updated: (XERCESJ 1253) Prototype for SoC2007 project "Add support for th
• Updated: (XERCESJ 1259) Add SteamFilter Function to SoC2007 project "Add
• Assigned: (XERCESJ 444) SAXException thrown by EntityResolver is reported
• Google Summer of Code 2007
• Xerces J and XInclude relative path issue
• Assigned: (XERCESJ 206) Stack overflow when using a schema validation
• Commented: (XERCESJ 1215) Restrictions involving two levels of substituti
• Closed: (XERCESJ 1203) NPE in XMLDTDProcessor
• non overriding equals methoda
• Resolved: (XERCESJ 1079) invalid value returned for TOTALDIGITS facet in
• Xerces AS3 port
• Updated: (XERCESJ 325) Regular Expression; Pattern "| " clause order de
• Updated: (XERCESJ 1196) Javadoc generation fails on Java SE 5 0
• Closed: (XERCESJ 1202) DTD validation on XIncluded documents when the sch
• Created: (XERCESJ 1124) Nonspecific schema error message
• a bug in xerces
• Updated: (XERCESJ 1201) Initial contribution for StAX Event API
• Closed: (XERCESJ 1254) Empty uris in targetNamespace attribute not report
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Created: (XERCESJ-1260) DTDGrammar is not thread-safe, but needs to be in

Created: (XERCESJ-1260) DTDGrammar is not thread-safe, but needs to be in

2007-07-20       - By Michael Glavassevich (JIRA)

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


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 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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