InetAddress address = InetAddresses.forString(ip);
    boolean isIpv6 = address instanceof Inet6Address;
    assertEquals(bigIntegerIp, InetAddresses.toBigInteger(address));
    assertEquals(
        address,
        isIpv6
            ? InetAddresses.fromIPv6BigInteger(bigIntegerIp)
            : InetAddresses.fromIPv4BigInteger(bigIntegerIp));
  }

   *
   * @param address {@link InetAddress} to convert
   * @return {@code BigInteger} representation of the address
   * @since 28.2
   */
  public static BigInteger toBigInteger(InetAddress address) {
    return new BigInteger(1, address.getAddress());
  }

  /**
   * Returns an Inet4Address having the integer value specified by the argument.
   *

   *
   * @param address {@link InetAddress} to convert
   * @return {@code BigInteger} representation of the address
   * @since 28.2
   */
  public static BigInteger toBigInteger(InetAddress address) {
    return new BigInteger(1, address.getAddress());
  }

  /**
   * Returns an Inet4Address having the integer value specified by the argument.
   *