Name: erR10175 Date: 12/10/2003


 
    If a TypeInfo instance refers to a simple type, the method TypeInfo.isDerivedFrom(...)
throws UnsupportedOperationException. The documentation of the method does not declare
that any exception is thrown in such a case.

This bug affects new test in JCK 1.5 (not integrated yet)
   api/org_w3c/dom/TypeInfo/index.html#TypeInfo[IsDerivedFrom003]

The bug is found in jdk1.5.0/beta/b30.

To reproduce the bug place test.java, test.xsd and test.xml to your current
directory, then compile and run test.java as shown in the log below:
------------------------------------------ test.java
import org.w3c.dom.Document;
import org.w3c.dom.TypeInfo;
import javax.xml.XMLConstants;
import javax.xml.parsers.DocumentBuilderFactory;

class test {
    static final String SCHEMA_LANGUAGE = "http://java.sun.com/xml/jaxp/properties/schemaLanguage";
    static final String SCHEMA_SOURCE = "http://java.sun.com/xml/jaxp/properties/schemaSource";

    public static void main(String[] args) throws Exception {

        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        dbf.setNamespaceAware(true);
        dbf.setValidating(true);
        dbf.setAttribute(SCHEMA_LANGUAGE, XMLConstants.W3C_XML_SCHEMA_NS_URI);
        dbf.setAttribute(SCHEMA_SOURCE, "test.xsd");

        Document document = dbf.newDocumentBuilder().parse("test.xml");

        TypeInfo type = document.getDocumentElement().getSchemaTypeInfo();

        if (type.isDerivedFrom("testNS", "Test", TypeInfo.DERIVATION_UNION)) {
            System.out.println("isDerivedFrom returns true");
        } else {
            System.out.println("OK");
        }
    }
}
----------------------------------------------------

------------------------------------------- test.xsd
<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
            xmlns:testNS="testNS"
            targetNamespace="testNS" elementFormDefault="qualified">
    
    <xsd:element name="test5">
        <xsd:simpleType>
            <xsd:restriction base="xsd:string"/>
        </xsd:simpleType>
    </xsd:element>

    <xsd:complexType name="Test">
        <xsd:sequence>
            <xsd:element name="description" minOccurs="0"/>
            <xsd:element name="code"/>
        </xsd:sequence>
    </xsd:complexType>

</xsd:schema>
----------------------------------------------------

------------------------------------------- test.xml
<?xml version='1.0'?>
<test5 xmlns="testNS">the test</test5>
----------------------------------------------------

------------------------------------------------ log
$javac test.java && java -cp . -showversion test
java version "1.5.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta-b30)
Java HotSpot(TM) Client VM (build 1.5.0-beta-b30, mixed mode)

Exception in thread "main" java.lang.UnsupportedOperationException
        at com.sun.org.apache.xerces.internal.impl.dv.xs.XSSimpleTypeDecl.isDerivedFrom(XSSimpleTypeDecl.java:2736)
        at test.main(test.java:22)
----------------------------------------------------

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