* the format specified by RFC 3986 section 3.2.2.
   *
   * <p>This method is similar to {@link InetAddresses#forString(String)}, however, it requires that
   * IPv6 addresses are surrounded by square brackets.
   *
   * <p>This method is the inverse of {@link InetAddresses#toUriString(java.net.InetAddress)}.
   *
   * <p>This method accepts non-ASCII digits, for example {@code "１９２.１６８.０.１"} (those are fullwidth

   * the format specified by RFC 3986 section 3.2.2.
   *
   * <p>This method is similar to {@link InetAddresses#forString(String)}, however, it requires that
   * IPv6 addresses are surrounded by square brackets.
   *
   * <p>This method is the inverse of {@link InetAddresses#toUriString(java.net.InetAddress)}.
   *
   * <p>This method accepts non-ASCII digits, for example {@code "１９２.１６８.０.１"} (those are fullwidth

    assertEquals(
        "2001:0:0:4::8", InetAddresses.toAddrString(InetAddresses.forString("2001:0:0:4:0:0:0:8")));
    assertEquals(
        "2001::4:5:6:7:8",
        InetAddresses.toAddrString(InetAddresses.forString("2001:0:0:4:5:6:7:8")));
    assertEquals(
        "2001:0:3:4:5:6:7:8",

   *
   * <p>Note that this parser identifies IPv6 literals solely based on the presence of a colon. To
   * perform actual validation of IP addresses, see the {@link InetAddresses#forString(String)}
   * method.
   *
   * @return {@code this}, to enable chaining of calls.
   * @throws IllegalArgumentException if bracketless IPv6 is detected.
   */
  @CanIgnoreReturnValue