public  void convertElement(XmlCursor cursor,
    XmlCursor end) 
{
        cursor.push();
        end.toCursor(cursor);
        end.toEndToken();
        while (cursor.hasNextToken() && cursor.isLeftOf(end)) {
            if (cursor.isStart()) {
                if (GERONIMO_SECURITY_NAMESPACE.equals(cursor.getName().getNamespaceURI())) {
                    break;
                }
                cursor.setName(new QName(GERONIMO_SECURITY_NAMESPACE, cursor.getName().getLocalPart()));
            }
            cursor.toNextToken();
        }
        cursor.pop();
        XmlCursor source = null;
        try {
            while (cursor.hasNextToken() && cursor.isLeftOf(end)) {
                if (cursor.isStart()) {
                    String localPart = cursor.getName().getLocalPart();
                    if (localPart.equals("realm")) {
                        if (source == null) {
                            source = cursor.newCursor();
                        } else {
                            source.toCursor(cursor);
                        }
                        cursor.push();
                        cursor.toEndToken();
                        cursor.toNextToken();
                        if (source.toChild(PRINCIPAL_QNAME)) {
                            do {
                                source.removeAttribute(DESIGNATED_RUN_AS);
                                source.copyXml(cursor);
                            } while (source.toNextSibling(PRINCIPAL_QNAME));
                        }
                        cursor.pop();
                        cursor.removeXml();
                    } else if (localPart.equals("default-subject")) {
//                    cursor.removeAttribute(REALM_NAME_QNAME);
                        cursor.toEndToken();
                    } else if (localPart.equals("default-principal")) {
                        cursor.removeXml();
                    } else if (localPart.equals("principal")) {
                        cursor.removeAttribute(DESIGNATED_RUN_AS);
                    } else if (localPart.equals("run-as-subject")) {
                        cursor.toEndToken();
                    }
                }
                cursor.toNextToken();
            }
        } finally {
            if (source != null) {
                source.dispose();
            }
        }
}