[XERCESJ-1569] NPE when validating XML with XML Schema 1.1 (but validation is made in 1.0 compatibility mode)

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.11.0
• Component/s: XML Schema 1.1 Structures
• Assignee: Mukul Gandhi
• Reporter: Radu Coravu
• Created: 11/Jul/12 13:19
• Updated: 12/Jul/12 20:55
• Resolved: 12/Jul/12 20:53

Description

I validate an XML:

<root xmlns="http://xstest-tns/schema11_D4_3_15"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xstest-tns/schema11_D4_3_15 npeXerces.xsd"/>

with an XML Schema 1.1:

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:tns="http://xstest-tns/schema11_D4_3_15"
targetNamespace="http://xstest-tns/schema11_D4_3_15"
elementFormDefault="qualified">
<xs:element name="root">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:assertion test="/root = 'present'" xpathDefaultNamespace="##targetNamespace" />
</xs:restriction>
</xs:simpleType>
</xs:element>
</xs:schema>

Although the schema is 1.1, it is parsed in 1.0-mode.

The NPE is like:

java.lang.NullPointerException
at org.apache.xerces.impl.xs.traversers.XSDAbstractTraverser.traverseFacets(XSDAbstractTraverser.java:468)
at org.apache.xerces.impl.xs.traversers.XSDSimpleTypeTraverser.getSimpleType(Unknown Source)
at org.apache.xerces.impl.xs.traversers.XSDSimpleTypeTraverser.traverseLocal(Unknown Source)
at org.apache.xerces.impl.xs.traversers.XSDElementTraverserXerces.traverseNamedElement(XSDElementTraverserXerces.java:397)
at org.apache.xerces.impl.xs.traversers.XSDElementTraverser.traverseNamedElement(XSDElementTraverser.java:69)
at org.apache.xerces.impl.xs.traversers.XSDElementTraverserXerces.traverseGlobal(XSDElementTraverserXerces.java:240)
at org.apache.xerces.impl.xs.traversers.XSDHandlerXerces.traverseSchemas(XSDHandlerXerces.java:1557)
at org.apache.xerces.impl.xs.traversers.XSDHandlerXerces.parseSchema(XSDHandlerXerces.java:694)
at org.apache.xerces.impl.xs.XMLSchemaLoader.loadSchema(Unknown Source)
at org.apache.xerces.impl.xs.XMLSchemaLoader.loadGrammar(Unknown Source)
at org.apache.xerces.parsers.XMLGrammarPreparserXerces.preparseGrammar(XMLGrammarPreparserXerces.java:210)