code: public static InetAddress appInfoToAddress(String info) {
      Matcher m = INET_ADDRESS_PATTERN.matcher(info);
      if (m.find()) {
        int port = Integer.parseInt(m.group(2));
        return new InetAddress(m.group(1), port);
      }
      return null;
    }
docs: Convert the appinfo string to the address the application is available on
  @param info the string of the appinfo
  @return the address application is available on