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https://issues.apache.org/jira/browse/XERCESJ-1568?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mukul Gandhi updated XERCESJ-1568:
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Fix Version/s: 2.12.0
> 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
> Assignee: Mukul Gandhi
> Fix For: 2.12.0
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> 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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