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https://issues.apache.org/jira/browse/XERCESJ-1633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13997440#comment-13997440
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Octavian Nadolu commented on XERCESJ-1633:
------------------------------------------
Great, I tested the the new jar and the problem is not reproduced any more.
I small thing, before the system.exit call was a also a
"ex.printStackTrace();". Maybe you remove also this call, I think it is not
necessary.
> Xerces crashes when validating an XML with an XSD that contains asserts
> -----------------------------------------------------------------------
>
> Key: XERCESJ-1633
> URL: https://issues.apache.org/jira/browse/XERCESJ-1633
> Project: Xerces2-J
> Issue Type: Bug
> Components: XML Schema 1.1 Structures
> Affects Versions: 2.11.0
> Reporter: Octavian Nadolu
> Attachments: assert.xsd, dashboard.xml
>
>
> One of Oxygen users reported us a crash, If you validate "dashboard.xml" with
> "assert.xsd" schema.
> A NullPointerException is thrown in the XPath2 library, when the assert xpath
> expression is evaluated. This exception is cached in
> "org.eclipse.wst.xml.xpath2.processor.internal.function.FsEq" class,
> "do_cmp_value_op()" method at line 381.
> The problem is that there is a System.exit(1) in that method, and after the
> exception is printed in output, the System.exit is called.
> I looked in the sources of the XPath2 library and the problem was fixed in
> the last build of the XPath2 library, but Xerxes used an older version of the
> library (1.2.0). Maybe you can try to rebuild the XPath2 library and remove
> the System.exit.
> I tested on the xml-schema-1.1-dev branch.
> {code}
> java.lang.RuntimeException: cannot compare using method eq
> at
> org.eclipse.wst.xml.xpath2.processor.internal.function.FsEq.do_cmp_value_op(FsEq.java:381)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.function.FsEq.fs_eq_value(FsEq.java:116)
> 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:592)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.function.FsEq.do_general_pair(FsEq.java:221)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.function.FsEq.do_cmp_general_op(FsEq.java:308)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.function.FsEq.fs_eq_general(FsEq.java:253)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.visit(DefaultEvaluator.java:635)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.ast.CmpExpr.accept(CmpExpr.java:106)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.do_bin_args(DefaultEvaluator.java:803)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.do_logic_exp(DefaultEvaluator.java:509)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.visit(DefaultEvaluator.java:545)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.ast.AndExpr.accept(AndExpr.java:39)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.do_expr(DefaultEvaluator.java:314)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.do_predicate(DefaultEvaluator.java:2072)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.visit(DefaultEvaluator.java:2114)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.ast.AxisStep.accept(AxisStep.java:46)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.visit(DefaultEvaluator.java:1251)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.ast.XPathExpr.accept(XPathExpr.java:43)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.do_bin_args(DefaultEvaluator.java:803)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.do_logic_exp(DefaultEvaluator.java:509)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.visit(DefaultEvaluator.java:545)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.ast.AndExpr.accept(AndExpr.java:39)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.do_expr(DefaultEvaluator.java:314)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.visit(DefaultEvaluator.java:1566)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.ast.ParExpr.accept(ParExpr.java:40)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.visit(DefaultEvaluator.java:2132)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.ast.FilterExpr.accept(FilterExpr.java:52)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.visit(DefaultEvaluator.java:1251)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.ast.XPathExpr.accept(XPathExpr.java:43)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.do_bin_args(DefaultEvaluator.java:802)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.do_logic_exp(DefaultEvaluator.java:509)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.visit(DefaultEvaluator.java:531)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.ast.OrExpr.accept(OrExpr.java:37)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.visit(DefaultEvaluator.java:1600)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.ast.FunctionCall.accept(FunctionCall.java:46)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.visit(DefaultEvaluator.java:2132)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.ast.FilterExpr.accept(FilterExpr.java:52)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.visit(DefaultEvaluator.java:1251)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.ast.XPathExpr.accept(XPathExpr.java:43)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.do_expr(DefaultEvaluator.java:314)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.visit(DefaultEvaluator.java:335)
> at org.eclipse.wst.xml.xpath2.processor.ast.XPath.accept(XPath.java:43)
> at
> org.eclipse.wst.xml.xpath2.processor.DefaultEvaluator.evaluate(DefaultEvaluator.java:289)
> at
> org.apache.xerces.impl.xs.AbstractPsychoPathXPath2Impl.evaluateXPathExpr(AbstractPsychoPathXPath2Impl.java:133)
> at
> org.apache.xerces.impl.xs.XMLAssertPsychopathXPath2Impl.evaluateOneAssertion(XMLAssertPsychopathXPath2Impl.java:580)
> at
> org.apache.xerces.impl.xs.XMLAssertPsychopathXPath2Impl.evaluateAssertionsFromAComplexType(XMLAssertPsychopathXPath2Impl.java:530)
> at
> org.apache.xerces.impl.xs.XMLAssertPsychopathXPath2Impl.processAllAssertionsOnElement(XMLAssertPsychopathXPath2Impl.java:306)
> at
> org.apache.xerces.impl.xs.XMLAssertPsychopathXPath2Impl.endElement(XMLAssertPsychopathXPath2Impl.java:241)
> at
> org.apache.xerces.impl.xs.XSDAssertionValidator.handleEndElement(XSDAssertionValidator.java:138)
> at
> org.apache.xerces.impl.xs.XMLSchemaValidator.assertionValidatorEndElementDelegate(XMLSchemaValidator.java:2113)
> at
> org.apache.xerces.impl.xs.XMLSchemaValidator.handleEndElement(XMLSchemaValidator.java:2021)
> at
> org.apache.xerces.impl.xs.XMLSchemaValidator.endElement(XMLSchemaValidator.java:487)
> 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:890)
> at
> org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:813)
> at
> org.apache.xerces.jaxp.validation.StreamValidatorHelper.validate(StreamValidatorHelper.java:186)
> at
> org.apache.xerces.jaxp.validation.ValidatorImpl.validate(ValidatorImpl.java:133)
> at javax.xml.validation.Validator.validate(Validator.java:82)
> at XercesValidation.main(XercesValidation.java:277)
> Caused by: java.lang.NullPointerException
> at
> org.eclipse.wst.xml.xpath2.processor.internal.types.XSAnyURI.eq(XSAnyURI.java:122)
> 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:592)
> at
> org.eclipse.wst.xml.xpath2.processor.internal.function.FsEq.do_cmp_value_op(FsEq.java:365)
> ... 63 more
> {code}
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