Using libxml 2.9.1

Today got example xml and two xsd files from an external system. The example file validates in Java, but does not in xmllint. The problem is in libxml2 or the Java parser?

The example XML file I got:

<?xml version="1.0"?>
<ArrayOfTestType xmlns="http://example.com/" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
  <TestType xmlns="" i:type="Test">
    <Id>test1</Id>
  </TestType>
  <TestType xmlns="" i:type="Test">
    <Id>test2</Id>
  </TestType>
</ArrayOfTestType>




The "root" XSD file:

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema targetNamespace="http://example.com/" xmlns:xs="http://www.w3.org/2001/XMLSchema">
        <xs:import schemaLocation="a1.xsd"/>
        <xs:element name="ArrayOfTestType">
                <xs:complexType>
                        <xs:sequence>
                                <xs:element ref="TestType" maxOccurs="unbounded"/>
                        </xs:sequence>
                </xs:complexType>
        </xs:element>
</xs:schema>




The a1.xsd referenced by the previous one:

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
        <xs:element name="Id" type="xs:string"/>
        <xs:element name="TestType" type="T_TestType"/>
        <xs:complexType name="Test">
                <xs:complexContent>
                        <xs:extension base="T_TestType">
                        </xs:extension>
                </xs:complexContent>
        </xs:complexType>
        <xs:complexType name="T_TestType">
                <xs:sequence>
                        <xs:element ref="Id"/>
                </xs:sequence>
        </xs:complexType>
</xs:schema>




Test Java code which reports valid xml:

import javax.xml.XMLConstants;
import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamSource;
import javax.xml.validation.*;
import org.xml.sax.SAXException;
import java.io.*;

public class ProtocolValidator
{
    public static void main(String [] args) throws Exception
    {
        Source schemaFile = new StreamSource(new File("a.xsd"));
        Source xmlFile = new StreamSource(new File("test.xml"));

        SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
        Schema schema = schemaFactory.newSchema(schemaFile);
        Validator validator = schema.newValidator();

        try{
            validator.validate(xmlFile);
            System.out.println(xmlFile.getSystemId() + " is valid");
        }
        catch (SAXException e) 
        {
            System.out.println(xmlFile.getSystemId() + " is NOT valid");
            System.out.println("Reason: " + e.getLocalizedMessage());
        }
    }
}




Test xmllint command line code:

$ xmllint --schema a.xsd test.xml 
<?xml version="1.0"?>
<ArrayOfTestType xmlns="http://example.com/" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
  <TestType xmlns="" i:type="Test">
    <Id>test1</Id>
  </TestType>
  <TestType xmlns="" i:type="Test">
    <Id>test2</Id>
  </TestType>
</ArrayOfTestType>
test.xml:3: element TestType: Schemas validity error : Element 'TestType', attribute '{http://www.w3.org/2001/XMLSchema-instance}type': The QName value '{}Test' of the xsi:type attribute does not resolve to a type definition.
test.xml:6: element TestType: Schemas validity error : Element 'TestType', attribute '{http://www.w3.org/2001/XMLSchema-instance}type': The QName value '{}Test' of the xsi:type attribute does not resolve to a type definition.
test.xml fails to validate