/**
     * Method checkUnknownElement.
     *
     * @param parser a parser object.
     * @param strict a strict object.
     * @throws XmlPullParserException XmlPullParserException if
     * any.
     * @throws IOException IOException if any.
     */
    private void checkUnknownElement(XmlPullParser parser, boolean strict) throws XmlPullParserException, IOException {