Cannot instantiate type-specific XmlBean from DOM

I couldn't get the XmlObject.Factory.parse(Node) to create type-specific XMLBean. The test code is

public class DOM2BeanTest {
public static void main(String[] args) throws Exception

{ DocumentBuilderFactory dbf = DocumentBuilderFactory.newInsta nce(); DocumentBuilder db = dbf.newDocumentBuilder(); File file = new File("test/testshib-metadata.xml"); // SAML2.0 Metadata file Document doc = db.parse(file); XmlObject xbean = XmlObject.Factory.parse(doc.getDocumentElement()); XmlObject xbean2 = XmlObject.Factory.parse(file); System.out.println("Type of xbean: "+xbean.getClass()); System.out.println("Type of xbean2: "+xbean2.getClass()); }

}

Type of xbean: class org.apache.xmlbeans.impl.values.XmlAnyTypeImpl
Type of xbean2: class x0Metadata.oasisNamesTcSAML2.impl.EntitiesDescriptorDocumentImpl

xbean2 is of correct user-derived type EntitiesDescriptorDocument but the xbean, parsed from a DOM Node, is always of generic type XmlAnyType.