* @param in the input stream to parse
     * @return the parsed sitemap set
     */
    protected SitemapSet parseTextSitemaps(final InputStream in) {
        final SitemapSet sitemapSet = new SitemapSet();
        sitemapSet.setType(SitemapSet.URLSET);

        try {
            final BufferedReader br = new BufferedReader(new InputStreamReader(in, Constants.UTF_8));
            String line;