* Update the port in sitemaps files after the server has started.
     * This is needed when using port 0 (random port) because the actual port
     * is not known until the server starts.
     */
    public void updateSitemapsPort() {
        final int actualPort = getPort();
        try {
            // Update sitemaps.xml
            final File sitemapsXmlFile = new File(docRoot, "sitemaps.xml");
            if (sitemapsXmlFile.exists()) {