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Posted to j-dev@xerces.apache.org by "Michael Glavassevich (JIRA)" <xe...@xml.apache.org> on 2005/08/09 20:02:36 UTC
[jira] Commented: (XERCESJ-1076) thread safety issue with schema validation
[ http://issues.apache.org/jira/browse/XERCESJ-1076?page=comments#action_12318189 ]
Michael Glavassevich commented on XERCESJ-1076:
-----------------------------------------------
I found a race condition in the code that handles character ranges. I believe this might be causing the failure though I've never been able to reproduce it. It seems that XERCESJ-1054 is another report of the same problem. I've put a fix into CVS which should eliminate the race condition. Could you please check whether tomorrow's build (or later) [1] resolves your problem?
[1] http://vmgump.apache.org/gump/public-jars/xml-xerces2/jars/
> thread safety issue with schema validation
> ------------------------------------------
>
> Key: XERCESJ-1076
> URL: http://issues.apache.org/jira/browse/XERCESJ-1076
> Project: Xerces2-J
> Type: Bug
> Components: XML Schema datatypes
> Versions: 2.6.2
> Environment: Java 1.4.2 or 1.5.0 on a SunOS wallaby 5.8 Generic_117350-12 sun4u sparc SUNW,Sun-Fire-V440
> (Couldn't reproduce on a 1 CPU Windows 2000 box).
> Reporter: Brett Watson-Luke
> Attachments: parseerror.zip
>
> Parsing multiple documents in multiple threads with schema validation enabled sometimes fails. The error reported is: org.xml.sax.SAXParseException: cvc-pattern-valid: Value 'en' is not facet-valid with respect to pattern '([a-zA-Z]{1,8})(-[a-zA-Z0-9]{1,8})*' for type 'language'.
> The test program I will provide to recreate the problem usually runs without error. It creates a number of threads, and parses the same document in each thread, concurrently.
> However, sometimes it fails with the reported error. I have provided a script (runit.sh) that will repeatedly run the program.
> The test program is called parseerror.ParseError. It uses an EntityResolver to locate the schema in the classpath.
> Typical program output is as follows:
> > runit.sh
> java version "1.4.2"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2-b28)
> Java HotSpot(TM) Client VM (build 1.4.2-b28, mixed mode)
> ...org.xml.sax.SAXParseException: cvc-pattern-valid: Value 'en' is not facet-valid with respect to pattern '([a-zA-Z]{1,8})(-[a-zA-Z0-9]{1,8})*' for type 'language'.
> at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
> at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source)
> at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
> at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
> at org.apache.xerces.impl.xs.XMLSchemaValidator$XSIErrorReporter.reportError(Unknown Source)
> at org.apache.xerces.impl.xs.XMLSchemaValidator.reportSchemaError(Unknown Source)
> at org.apache.xerces.impl.xs.XMLSchemaValidator.processOneAttribute(Unknown Source)
> at org.apache.xerces.impl.xs.XMLSchemaValidator.processAttributes(Unknown Source)
> at org.apache.xerces.impl.xs.XMLSchemaValidator.handleStartElement(Unknown Source)
> at org.apache.xerces.impl.xs.XMLSchemaValidator.startElement(Unknown Source)
> at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
> at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
> at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
> at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
> at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
> at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
> at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
> at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
> at javax.xml.parsers.DocumentBuilder.parse(Unknown Source)
> at parseerror.ParseError$ParseThread.run(ParseError.java:55)
> .... etc
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