Radu Coravu created XERCESJ-1577:
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             Summary: Error when referencing substitution group with chameleon 
namespace
                 Key: XERCESJ-1577
                 URL: https://issues.apache.org/jira/browse/XERCESJ-1577
             Project: Xerces2-J
          Issue Type: Bug
          Components: XML Schema 1.0 Structures
    Affects Versions: 2.11.0
            Reporter: Radu Coravu


Tested with the libraries from the Xerces-J 2.11.0-xml-schema-1.1-beta release.

If I have a small schema in no-namespace like:

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"; 
elementFormDefault="qualified">
    <xs:element name="elem" substitutionGroup="p.trans"/>
    <xs:element name="p.trans" abstract="true"/>
</xs:schema>


and a schema which has a target namespaces and includes it:

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"; 
elementFormDefault="qualified" targetNamespace="mainNS" xmlns:ns="mainNS">
    <xs:include schemaLocation="test.xsd"/>
</xs:schema>

Validation of the main schema (or of an XML referencing the XML schema) reports 
the following problem:

src-resolve.4.1: Error resolving component 'p.trans'. It was detected that 
'p.trans' has no namespace, but components with no target namespace are not 
referenceable from schema document 
'file:/C:/Users/radu_coravu/Desktop/xsdProblem/test.xsd'. If 'p.trans' is 
intended to have a namespace, perhaps a prefix needs to be provided. If it is 
intended that 'p.trans' has no namespace, then an 'import' without a 
"namespace" attribute should be added to 
'file:/C:/Users/radu_coravu/Desktop/xsdProblem/test.xsd'.


Basically the reference to a substitution group which is in a chameleon schema 
is not properly binded once the schema is included from a schema which has a 
target namespace.
This worked in Xerces 2.9.1.

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