docs: public static String ipAddressToUrlString(InetAddress address) {
  		if (address == null) {
  			throw new NullPointerException("address is null");
  		}
  		else if (address instanceof Inet4Address) {
  			return address.getHostAddress();
  		}
  		else if (address instanceof Inet6Address) {
  			return getIPv6UrlRepresentation((Inet6Address) address);
  		}
  		else {
  			throw new IllegalArgumentException("Unrecognized type of InetAddress: " + address);
  		}
  	}