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https://issues.apache.org/jira/browse/XERCESJ-1583?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13447324#comment-13447324
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Mukul Gandhi commented on XERCESJ-1583:
---------------------------------------
If I understand correctly, Xerces currently doesn't expose XSD 1.1 validation
other than via JAXP APIs. Therefore, any attempt to do XSD 1.1 validation with
Xerces other than via JAXP (for e.g, as used in your example in this bug
report) is currently not implemented and unsupported in Xerces.
> NullPointerException when parsing an instance that has a schema with
> inheritable attribute
> ------------------------------------------------------------------------------------------
>
> Key: XERCESJ-1583
> URL: https://issues.apache.org/jira/browse/XERCESJ-1583
> Project: Xerces2-J
> Issue Type: Bug
> Components: XML Schema 1.1 Structures
> Affects Versions: 2.11.0
> Reporter: Octavian Nadolu
>
> If I parse the instance.xml file using the following java code, I get an
> NullPointerException. I tested on the xml-schema-1.1-dev branch.
> -----------Java code-----------------------
> XMLReader parser = new org.apache.xerces.parsers.SAXParser();
> parser.setFeature(Constants.XERCES_FEATURE_PREFIX +
> Constants.SCHEMA_VALIDATION_FEATURE, true);
> parser.parse("file:/C:/instance.xml");
> --------------------------------------
> -----------------instance.xml-------------------
> <BookStore xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xsi:noNamespaceSchemaLocation="schema.xsd">
> </BookStore>
> -------------------------------------------------------
> ---------------------schema.xsd-----------------
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema";>
> <xs:element name="BookStore">
> <xs:complexType>
> <xs:attribute name="lang" inheritable="true" type="xs:string"/>
> </xs:complexType>
> </xs:element>
> </xs:schema>
> --------------------------------------------------------
> -----------NullPointerException -------------------------------
> Exception in thread "main" java.lang.NullPointerException
> at
> org.apache.xerces.impl.xs.traversers.XSDAttributeTraverser.traverseLocal(XSDAttributeTraverser.java:144)
> at
> org.apache.xerces.impl.xs.traversers.XSDAbstractTraverser.traverseAttrsAndAttrGrps(XSDAbstractTraverser.java:796)
> at
> org.apache.xerces.impl.xs.traversers.XSDComplexTypeTraverser.processComplexContent(XSDComplexTypeTraverser.java:1639)
> at
> org.apache.xerces.impl.xs.traversers.XSDComplexTypeTraverser.traverseComplexTypeDecl(XSDComplexTypeTraverser.java:485)
> at
> org.apache.xerces.impl.xs.traversers.XSDComplexTypeTraverser.traverseLocal(XSDComplexTypeTraverser.java:181)
> at
> org.apache.xerces.impl.xs.traversers.XSDElementTraverser.traverseNamedElement(XSDElementTraverser.java:393)
> at
> org.apache.xerces.impl.xs.traversers.XSDElementTraverser.traverseGlobal(XSDElementTraverser.java:241)
> at
> org.apache.xerces.impl.xs.traversers.XSDHandler.traverseSchemas(XSDHandler.java:1629)
> at
> org.apache.xerces.impl.xs.traversers.XSDHandler.parseSchema(XSDHandler.java:724)
> at
> org.apache.xerces.impl.xs.XMLSchemaLoader.loadSchema(XMLSchemaLoader.java:644)
> at
> org.apache.xerces.impl.xs.XMLSchemaValidator.findSchemaGrammar(XMLSchemaValidator.java:3072)
> at
> org.apache.xerces.impl.xs.XMLSchemaValidator.handleStartElement(XMLSchemaValidator.java:2259)
> at
> org.apache.xerces.impl.xs.XMLSchemaValidator.startElement(XMLSchemaValidator.java:859)
> 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.XML11Configuration.parse(XML11Configuration.java:890)
> at
> org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:813)
> at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:108)
> at
> org.apache.xerces.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1129)
> at XercesParse.main(XercesParse.java:70)
> ---------------------------------------------------------------------------
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