[XERCESJ-1610] NPE when collecting the asserts from a base type

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.11.0
• Fix Version/s: 2.12.0
• Component/s: XML Schema 1.1 Structures
• Assignee: Mukul Gandhi
• Reporter: Octavian Nadolu
• Created: 20/Mar/13 08:39
• Updated: 22/Jul/16 08:45
• Resolved: 20/Mar/13 10:58

Description

When I validate the following schema I get a NullPointerException. The exception occurs because it tries to collect the assertions from a base type, and the base type does not have a name because is anonymous.
I tested on the xml-schema-1.1-dev branch.

---- schema.xsd------------------------
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:simpleType name="PriceClassType">
<xs:restriction>
<xs:simpleType>
<xs:list itemType="xs:string"/>
</xs:simpleType>
</xs:restriction>
</xs:simpleType>

<xs:group name="PriceGroup">
<xs:choice>
<xs:element name="PriceClasses" maxOccurs="unbounded">
<xs:complexType>
<xs:simpleContent>
<xs:extension base="PriceClassType">
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:element>
</xs:choice>
</xs:group>
</xs:schema>
----------------------------------------------------------

----------- NPE------------------------------
Exception in thread "main" java.lang.NullPointerException
at org.apache.xerces.impl.xs.traversers.XSDComplexTypeTraverser.addAssertsFromBaseTypes(XSDComplexTypeTraverser.java:1453)
at org.apache.xerces.impl.xs.traversers.XSDComplexTypeTraverser.traverseSimpleContent(XSDComplexTypeTraverser.java:696)
at org.apache.xerces.impl.xs.traversers.XSDComplexTypeTraverser.traverseComplexTypeDecl(XSDComplexTypeTraverser.java:442)
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.traverseLocal(XSDElementTraverser.java:193)
at org.apache.xerces.impl.xs.traversers.XSDHandler.traverseLocalElements(XSDHandler.java:3984)
at org.apache.xerces.impl.xs.traversers.XSDHandler.parseSchema(XSDHandler.java:731)
at org.apache.xerces.impl.xs.XMLSchemaLoader.loadSchema(XMLSchemaLoader.java:644)
at org.apache.xerces.impl.xs.XMLSchemaLoader.loadGrammar(XMLSchemaLoader.java:611)
at org.apache.xerces.impl.xs.XMLSchemaLoader.loadGrammar(XMLSchemaLoader.java:577)
at org.apache.xerces.jaxp.validation.BaseSchemaFactory.newSchema(BaseSchemaFactory.java:223)
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