Octavian Nadolu created XERCESJ-1605:
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Summary: 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
Priority: Minor
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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