Radu Coravu created XERCESJ-1568:
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Summary: NPE when overridden schema does not exist
Key: XERCESJ-1568
URL: https://issues.apache.org/jira/browse/XERCESJ-1568
Project: Xerces2-J
Issue Type: Bug
Affects Versions: 2.11.0
Reporter: Radu Coravu
I try to validate a schema with the following content:
<?xml version="1.0"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema";
targetNamespace="http://xstest-tns/schema11_S3_4_2_4";
elementFormDefault="qualified"
attributeFormDefault="qualified"
xmlns:tns="http://xstest-tns/schema11_S3_4_2_4";
defaultAttributes="tns:defaultAttrGroup">
<override schemaLocation="s3_4_2_4ii10b.xsd">
<complexType name="c1" defaultAttributesApply="false">
<sequence>
<element name="element_added" minOccurs="1"/>
</sequence>
</complexType>
</override>
</schema>
The "s3_4_2_4ii10b.xsd" is missing.
One of the received errors is a NPE:
java.lang.NullPointerException
at org.apache.xerces.dom.CoreDocumentImpl.importNode(Unknown Source)
at org.apache.xerces.dom.CoreDocumentImpl.importNode(Unknown Source)
at
org.apache.xerces.impl.xs.traversers.override.DOMOverrideImpl.cloneOverridenSchema(DOMOverrideImpl.java:283)
at
org.apache.xerces.impl.xs.traversers.override.DOMOverrideImpl.transform(DOMOverrideImpl.java:106)
at
org.apache.xerces.impl.xs.traversers.override.OverrideTransformationManager.transform(Unknown
Source)
at
org.apache.xerces.impl.xs.traversers.XSDHandlerXerces.constructTrees(XSDHandlerXerces.java:1182)
at
org.apache.xerces.impl.xs.traversers.XSDHandlerXerces.parseSchema(XSDHandlerXerces.java:684)
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)
Somehow the code tries to clone the DOM document for the overridden schema,
even if it is not available.
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