String schemaLocationURL = "http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd";
String version = "2.5";
XmlCursor cursor = xmlObject.newCursor();
try {
cursor.toStartDoc();
cursor.toFirstChild();
if ("http://java.sun.com/xml/ns/j2ee".equals(cursor.getName().getNamespaceURI())) {
SchemaConversionUtils.convertSchemaVersion(cursor, SchemaConversionUtils.JAVAEE_NAMESPACE, schemaLocationURL, version);
XmlObject result = xmlObject.changeType(WebAppDocument.type);
XmlBeansUtil.validateDD(result);