Name: inR10064 Date: 02/18/2004


The method
    public Schema newSchema(File schema)

of the class javax.xml.validation.SchemaFactory does not detect
violations of the "Schema Component Constraint: Element Declarations Consistent"
defined in section "3.8.6 Constraints on Model Group Schema Components"
of XML Schema 1.0 Structures spec :

      If the {particles} contains, either directly, indirectly (that is, within
      the {particles} of a contained model group, recursively) or ?implicitly?
      two or more element declaration particles with the same {name} and {target
      namespace}, then all their type definitions must be the same top-level
      definition, that is, all of the following must be true:
          1 all their {type definition}s must have a non-?absent? name.
          2 all their {type definition}s must have the same name.
          3 all their {type definition}s must have the same target namespace.

See the sample and log below. Test schemas of the affected JCK 15 tests contain
definitions like:
                <xsd:sequence>
                        <xsd:element name="e1" type="xsd:string"/>
                        <xsd:element name="e1" type="xsd:integer"/>
                </xsd:sequence>

which are processed without errors.

The bug found in the JDK 1.5.0-beta-b38. The bug affects the following
new JCK-15 beta2 tests adopted from W3C XSTC-20020116 testsuite:

     api/xml_schema/msxsdtest/ModelGroups/mgR001.html#mgR001
     api/xml_schema/msxsdtest/ModelGroups/mgR002.html#mgR002
     api/xml_schema/msxsdtest/ModelGroups/mgR003.html#mgR003
     api/xml_schema/msxsdtest/ModelGroups/mgR006.html#mgR006
     api/xml_schema/msxsdtest/ModelGroups/mgR007.html#mgR007
     api/xml_schema/msxsdtest/ModelGroups/mgR008.html#mgR008
     api/xml_schema/msxsdtest/ModelGroups/mgR009.html#mgR009
     api/xml_schema/msxsdtest/ModelGroups/mgR014.html#mgR014
     api/xml_schema/msxsdtest/ModelGroups/mgR015.html#mgR015
     api/xml_schema/msxsdtest/ModelGroups/mgR016.html#mgR016
     api/xml_schema/msxsdtest/ModelGroups/mgR017.html#mgR017
     api/xml_schema/msxsdtest/ModelGroups/mgR018.html#mgR018
     api/xml_schema/msxsdtest/ModelGroups/mgR019.html#mgR019
     api/xml_schema/msxsdtest/ModelGroups/mgR020.html#mgR020
     api/xml_schema/msxsdtest/ModelGroups/mgR021.html#mgR021
     api/xml_schema/msxsdtest/ModelGroups/mgR022.html#mgR022

---- mgR001.xsd ----------------------------------------------------------------------
<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
        <xsd:element name="doc" type="foo"/>
        <xsd:complexType name="foo">
                <xsd:all>
                        <xsd:element name="e1" type="xsd:string"/>
                        <xsd:element name="e1" type="bar"/>
                </xsd:all>
        </xsd:complexType>
        <xsd:complexType name="bar">
                <xsd:sequence>
                        <xsd:choice>
                                <xsd:choice>
                                        <xsd:element name="e1" type="xsd:string"/>
                                </xsd:choice>
                        </xsd:choice>
                </xsd:sequence>
        </xsd:complexType>
</xsd:schema>


------ LoadSchema.java --------------------------------------------------------------------
package test;

import java.io.File;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.helpers.DefaultHandler;
import javax.xml.validation.SchemaFactory;

public class LoadSchema {

    protected static class ErrorHandler extends DefaultHandler {
        public int errorCounter = 0;

        public void error(SAXParseException e) throws SAXException {
            System.out.println(e);
            errorCounter++;
        }

        public void fatalError(SAXParseException e) throws SAXException {
            System.out.println(e);
            errorCounter++;
        }
    }

    public static void main(String [] args) {
        SchemaFactory schemaFactory =
                SchemaFactory.newInstance("http://www.w3.org/2001/XMLSchema");

        ErrorHandler errorHandler = new ErrorHandler();
        schemaFactory.setErrorHandler(errorHandler);

        try {
            schemaFactory.newSchema(new File(args[0]));
        } catch (SAXException e) {
            exit(1, "Fatal Error: " + e);
        }

        if (errorHandler.errorCounter != 0) {
            exit(1, "Errors reported: " + errorHandler.errorCounter);
        } else {
            exit(0, "No error reported.");
        }
    }

    public static void exit(int errCode, String msg) {
        System.out.println(msg);
        System.exit(errCode);
    }
}


--------------------------------------------------------------------------
% java -showversion -cp . test.LoadSchema mgR001.xsd
java version "1.5.0-beta2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta2-b38)
Java HotSpot(TM) Server VM (build 1.5.0-beta2-b38, mixed mode)

No error reported.

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