[XERCESJ-893] DOM level 3 : Cannot import 2 XSD within the same namespace

• Type: Bug
• Status: Resolved
• Resolution: Fixed
• Affects Version/s: 2.6.1
• Component/s: Other
• Environment: Operating System: Windows NT/2K; Platform: PC
• Bugzilla Id: 27055
• Assignee: Unassigned
• Reporter: Franck Schmidlin
• Created: 19/Feb/04 09:17
• Updated: 24/Jun/05 08:46
• Resolved: 24/Jun/05 08:46

Description

In a XSD schema such as:

<xs:schema targetNamespace="ABC" xmlns:abc="ABC" xmlns:b="B" xmlns:c="B"
xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified"
attributeFormDefault="unqualified">
<xs:import namespace="B" schemaLocation="B.xsd"/>
<xs:import namespace="B" schemaLocation="C.xsd"/>
<xs:element name="A">
<xs:complexType>
<xs:sequence>
<xs:element name="B" type="b:BType"/>
<xs:element name="C" type="c:CType"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>

The second <import/> is ignored, along side the declaration for CType

Using the following code:

String strXml = "<A xmlns='ABC'><B>b</B><C>c</C></A>");
javax.xml.parsers.DocumentBuilderFactory dbf=
javax.xml.parsers.DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
dbf.setAttribute("http://xml.org/sax/features/validation",Boolean.FALSE);
dbf.setAttribute("http://apache.org/xml/features/nonvalidating/load-external-
dtd", Boolean.FALSE);
javax.xml.parsers.DocumentBuilder parser = dbf.newDocumentBuilder();
// Load XML without validating it
Document dom = parser.parse(new org.xml.sax.InputSource(new java.io.StringReader
(strXml)));

// Now validate against arbitrary schema
org.w3c.dom.DOMConfiguration config = Document.getDomConfig();
config.setParameter("error-handler", myErrorHandler);
config.setParameter("validate", Boolean.TRUE);
config.setParameter("schema-type", "http://www.w3.org/2001/XMLSchema");
config.setParameter("schema-location", "ABC A.xsd");
Document.normalizeDocument();

I get the following parsing error:
error at (9, 46)! src-resolve: Cannot resolve the name 'c:CType' to a 'type
definition' component.

======================================
For completeness:

B.XSD

<xs:schema targetNamespace="B" xmlns:xs="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified" attributeFormDefault="unqualified">
<xs:simpleType name="BType">
<xs:restriction base="xs:string">
<xs:pattern value="[bB]*"/>
</xs:restriction>
</xs:simpleType>
</xs:schema>

C.XSD

<xs:schema targetNamespace="B" xmlns:xs="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified" attributeFormDefault="unqualified">
<xs:simpleType name="CType">
<xs:restriction base="xs:string">
<xs:pattern value="[cC]*"/>
</xs:restriction>
</xs:simpleType>
</xs:schema>

========================================

Also, everything works perfectly when importing elements from different
namespaces:

A.XSD

<xs:schema targetNamespace="ABC" xmlns:abc="ABC" xmlns:b="B" xmlns:c="C"
xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified"
attributeFormDefault="unqualified">
<xs:import namespace="B" schemaLocation="B.xsd"/>
<xs:import namespace="B" schemaLocation="C.xsd"/>

[... as before]

C.XSD

<xs:schema targetNamespace="C"
[... as before]