code: public Country getCountryV6(String ipAddress) {
          InetAddress addr;
          try {
              addr = InetAddress.getByName(ipAddress);
          } catch (UnknownHostException e) {
              return UNKNOWN_COUNTRY;
          }
          return getCountryV6(addr);
      }
docs: Returns the country the IP address is in.
  
  @param ipAddress
  String version of an IPv6 address, i.e. "::127.0.0.1"
  @return the country the IP address is from.