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https://issues.apache.org/jira/browse/XERCESJ-1488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13004364#comment-13004364
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Mukul Gandhi commented on XERCESJ-1488:
---------------------------------------
Hi Sandy,
Thanks for your thoughts.
As a starting point, the current implementation of assertions for simpleType's
with variety union was produced (I would admit that I didn't had generation of
PSVI in mind while writing this implementation).
I'll revisit this part of Xerces design as per your suggestions, related to
PSVI and will write to the list (and change implementation asap) when I've
something concrete in mind.
Regards,
Mukul
> NullPointerException caused by XMLSchemaValidator.addDefaultAttributes
> ----------------------------------------------------------------------
>
> Key: XERCESJ-1488
> URL: https://issues.apache.org/jira/browse/XERCESJ-1488
> Project: Xerces2-J
> Issue Type: Bug
> Components: XML Schema 1.1 Structures
> Affects Versions: 2.11.0
> Environment: Java version: 1.6.0_23
> Java home: C:\Program Files\Java\jdk1.6.0_23\jre
> Default locale: en_US, platform encoding: Cp1252
> OS name: "windows vista" version: "6.0" arch: "amd64" Family: "windows"
> Reporter: Gary Gregory
> Assignee: Khaled Noaman
> Priority: Blocker
> Attachments: XERCESJ-1488_samples.zip
>
>
> The following is a regression from 2.10 because our unit tests run OK with
> 2.10 and blow up with 2.11.
> NullPointerException caused by XMLSchemaValidator.addDefaultAttributes
> Note that the second argument is null in the call:
> {noformat}
> if (XSTypeHelper.isAtomicValueValidForAnUnion(attDV.getMemberTypes(),
> null, defaultValue)) {
> {noformat}
> at
> XMLSchemaValidator.addDefaultAttributes(QName, XMLAttributes,
> XSAttributeGroupDecl) line: 3385
> Which means that at this point in the call chain:
> {noformat}
> Thread [main] (Suspended (breakpoint at line 2255 in XSSimpleTypeDecl))
> XSSimpleTypeDecl.normalize(Object, short) line: 2255
> XSSimpleTypeDecl.getActualValue(Object, ValidationContext,
> ValidatedInfo, boolean) line: 2053
> XSSimpleTypeDecl.validate(String, ValidationContext, ValidatedInfo)
> line: 1742
> XSTypeHelper.isValueValidForASimpleType(String, XSSimpleType) line: 135
> XSTypeHelper.isAtomicValueValidForAnUnion(XSObjectList, String,
> ValidatedInfo) line: 108
> XMLSchemaValidator.addDefaultAttributes(QName, XMLAttributes,
> XSAttributeGroupDecl) line: 3385
> XMLSchemaValidator.handleStartElement(QName, XMLAttributes,
> Augmentations) line: 2375
> XMLSchemaValidator.startElement(QName, XMLAttributes, Augmentations)
> line: 815
> XMLNSDocumentScannerImpl.scanStartElement() line: 283
> XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook()
> line: 733
>
> XMLNSDocumentScannerImpl$NSContentDispatcher(XMLDocumentFragmentScannerImpl$FragmentContentDispatcher).dispatch(boolean)
> line: 1754
>
> XMLNSDocumentScannerImpl(XMLDocumentFragmentScannerImpl).scanDocument(boolean)
> line: 324
> IntegratedParserConfiguration(DTDConfiguration).parse(boolean) line:
> 515
> IntegratedParserConfiguration(DTDConfiguration).parse(XMLInputSource)
> line: 571
> DOMParser(XMLParser).parse(XMLInputSource) line: 108
> DOMParser.parse(InputSource) line: 230
> DocumentBuilderImpl.parse(InputSource) line: 298
> XmlValidator.validate(InputSource) line: 279
> XmlValidator.validate(URL) line: 317
> XmlValidator.validate(String) line: 300
> XmlValidatorTestCase.validateXmlSchema1_0_2(String) line: 187
> XmlValidatorTestCase.testSimpleXsd_XmlSchema1_0_2() line: 126
> NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not
> available [native method]
> NativeMethodAccessorImpl.invoke(Object, Object[]) line: 39
> DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 25
> Method.invoke(Object, Object...) line: 597
> FrameworkMethod$1.runReflectiveCall() line: 44
> FrameworkMethod$1(ReflectiveCallable).run() line: 15
> FrameworkMethod.invokeExplosively(Object, Object...) line: 41
> InvokeMethod.evaluate() line: 20
> BlockJUnit4ClassRunner.runNotIgnored(FrameworkMethod, EachTestNotifier)
> line: 79
> BlockJUnit4ClassRunner.runChild(FrameworkMethod, RunNotifier) line: 71
> BlockJUnit4ClassRunner.runChild(Object, RunNotifier) line: 49
> ParentRunner$3.run() line: 193
> ParentRunner$1.schedule(Runnable) line: 52
> BlockJUnit4ClassRunner(ParentRunner<T>).runChildren(RunNotifier) line:
> 191
> ParentRunner<T>.access$000(ParentRunner, RunNotifier) line: 42
> ParentRunner$2.evaluate() line: 184
> BlockJUnit4ClassRunner(ParentRunner<T>).run(RunNotifier) line: 236
> JUnit4TestMethodReference(JUnit4TestReference).run(TestExecution) line:
> 49
> TestExecution.run(ITestReference[]) line: 38
> RemoteTestRunner.runTests(String[], String, TestExecution) line: 467
> RemoteTestRunner.runTests(TestExecution) line: 683
> RemoteTestRunner.run() line: 390
> RemoteTestRunner.main(String[]) line: 197
> {noformat}
>
> The "return null;" runs at:
> XSSimpleTypeDecl.normalize(Object, short) line: 2255
> {noformat}
> if (content == null)
> return null;
> {noformat}
>
> Which then causes:
> {noformat}
> java.lang.NullPointerException
> at java.util.StringTokenizer.<init>(StringTokenizer.java:182)
> at java.util.StringTokenizer.<init>(StringTokenizer.java:204)
> at
> org.apache.xerces.impl.dv.xs.XSSimpleTypeDecl.getActualValue(XSSimpleTypeDecl.java:2105)
> at
> org.apache.xerces.impl.dv.xs.XSSimpleTypeDecl.validate(XSSimpleTypeDecl.java:1742)
> at
> org.apache.xerces.impl.xs.util.XSTypeHelper.isValueValidForASimpleType(XSTypeHelper.java:135)
> at
> org.apache.xerces.impl.xs.util.XSTypeHelper.isAtomicValueValidForAnUnion(XSTypeHelper.java:108)
> at
> org.apache.xerces.impl.xs.XMLSchemaValidator.addDefaultAttributes(XMLSchemaValidator.java:3385)
> at
> org.apache.xerces.impl.xs.XMLSchemaValidator.handleStartElement(XMLSchemaValidator.java:2375)
> at
> org.apache.xerces.impl.xs.XMLSchemaValidator.startElement(XMLSchemaValidator.java:815)
> at
> org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:283)
> at
> org.apache.xerces.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(XMLNSDocumentScannerImpl.java:733)
> at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1754)
> at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:324)
> at
> org.apache.xerces.parsers.DTDConfiguration.parse(DTDConfiguration.java:515)
> at
> org.apache.xerces.parsers.DTDConfiguration.parse(DTDConfiguration.java:571)
> at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:108)
> at org.apache.xerces.parsers.DOMParser.parse(DOMParser.java:230)
> at
> org.apache.xerces.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:298)
> at
> com.seagullsw.toolbox.xml.XmlValidator.validate(XmlValidator.java:279)
> at
> com.seagullsw.toolbox.xml.XmlValidator.validate(XmlValidator.java:317)
> at
> com.seagullsw.toolbox.xml.XmlValidator.validate(XmlValidator.java:300)
> at
> com.seagullsw.toolbox.xml.XmlValidatorTestCase.validateXmlSchema1_0_2(XmlValidatorTestCase.java:187)
> at
> com.seagullsw.toolbox.xml.XmlValidatorTestCase.testSimpleXsd_XmlSchema1_0_2(XmlValidatorTestCase.java:126)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
> at
> org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
> at
> org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
> {noformat}
> because the null value is passed all the way down the call chain until it
> causes the implosion.
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