public void roundTrip () throws XmlPullParserException, IOException {
private void roundTrip() throws XmlPullParserException, IOException {
    public void roundTrip () throws XmlPullParserException, IOException {        parser.nextToken(); // read first token        writeToken (XmlPullParser.START_DOCUMENT);  // write optional XMLDecl if present        while (parser.getEventType () != XmlPullParser.END_DOCUMENT) {            writeToken ( parser.getEventType () );            parser.nextToken ();        }        writeToken (XmlPullParser.END_DOCUMENT);    }