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https://issues.apache.org/jira/browse/XERCESJ-1605?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mukul Gandhi updated XERCESJ-1605:
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Fix Version/s: 2.12.0
> NPE when comparing alternative types
> ------------------------------------
>
> Key: XERCESJ-1605
> URL: https://issues.apache.org/jira/browse/XERCESJ-1605
> Project: Xerces2-J
> Issue Type: Bug
> Components: XML Schema 1.1 Structures
> Affects Versions: 2.11.0
> Reporter: Octavian Nadolu
> Assignee: Mukul Gandhi
> Priority: Minor
> Fix For: 2.12.0
>
>
> When I validate the following schema I get an NPE. It seems that one of the
> default alternative types is null. The schema is bigger but I extracted only
> a part of it, just to reproduce the problem.
> I tested on the xml-schema-1.1-dev branch.
> ---- schema.xsd------------------------
> <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema";>
> <xsd:complexType name="type1">
> <xsd:choice>
> <xsd:sequence>
> <xsd:element name="Element1">
> <xsd:alternative test="@index='3'" type="TypeI3"/>
> <xsd:alternative type="TypeI5"/>
> </xsd:element>
> </xsd:sequence>
> <xsd:sequence>
> <xsd:element name="Element1">
> <xsd:alternative test="@index='3'" type="TypeI3"/>
> <xsd:alternative type="TypeI5"/>
> <xsd:unique name="TypeI5_U">
> <xsd:selector xpath="*"/>
> <xsd:field xpath="@index"/>
> </xsd:unique>
> </xsd:element>
> </xsd:sequence>
> </xsd:choice>
> </xsd:complexType>
> <xsd:complexType name="TypeI3"/>
> <xsd:complexType name="TypeI5"/>
> </xsd:schema>
> ----------------------------------------------------------
> ----------- NPE------------------------------
> java.lang.NullPointerException
> at
> org.apache.xerces.impl.xs.XS11Constraints.isTypeAlternativesEquivalent(XS11Constraints.java:235)
> at
> org.apache.xerces.impl.xs.XS11Constraints.isTypeTablesEquivalent(XS11Constraints.java:227)
> at
> org.apache.xerces.impl.xs.XS11Constraints.findElemInTable(XS11Constraints.java:137)
> at
> org.apache.xerces.impl.xs.XS11Constraints.checkElementDeclsConsistent(XS11Constraints.java:105)
> at
> org.apache.xerces.impl.xs.XSConstraints.fullSchemaChecking(XSConstraints.java:422)
> at
> org.apache.xerces.impl.xs.XMLSchemaLoader.loadGrammar(XMLSchemaLoader.java:618)
> at
> org.apache.xerces.impl.xs.XMLSchemaLoader.loadGrammar(XMLSchemaLoader.java:577)
> at
> org.apache.xerces.jaxp.validation.BaseSchemaFactory.newSchema(BaseSchemaFactory.java:223)
> at XercesValidation.main(XercesValidation.java:256)
> ----------------------------------------------------
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