String host = "[::1]";
        InetAddress[] addresses = resolver.resolve(host);
        assertNotNull(addresses);
        assertTrue(addresses.length > 0);
        // IPv6 loopback can be represented as ::1 or 0:0:0:0:0:0:0:1
        String hostAddress = addresses[0].getHostAddress();
        assertTrue(hostAddress.contains(":"));
        assertTrue(hostAddress.equals("::1") || hostAddress.equals("0:0:0:0:0:0:0:1"));

public final class Ints extends IntsMethodsForWeb {
  private Ints() {}

  /**
   * The number of bytes required to represent a primitive {@code int} value.
   *
   * <p>Prefer {@link Integer#BYTES} instead.
   */
  public static final int BYTES = Integer.BYTES;

  /**
   * The largest power of two that can be represented as an {@code int}.
   *
   * @since 10.0
   */

    ImmutableSet.Builder<BigInteger> testBigIntegersBuilder = ImmutableSet.builder();

    // The values here look like 111...11101...010 in binary, where the initial 111...1110 takes
    // up exactly as many bits as can be represented in the significand (24 for float, 53 for
    // double). That final 0 should be rounded up to 1 because the remaining bits make that number
    // slightly nearer.
    long floatConversionTest = 0xfffffe8000000002L;

    ImmutableSet.Builder<BigInteger> testBigIntegersBuilder = ImmutableSet.builder();

    // The values here look like 111...11101...010 in binary, where the initial 111...1110 takes
    // up exactly as many bits as can be represented in the significand (24 for float, 53 for
    // double). That final 0 should be rounded up to 1 because the remaining bits make that number
    // slightly nearer.
    long floatConversionTest = 0xfffffe8000000002L;

 */
@GwtCompatible
public final class Longs {
  private Longs() {}

  /**
   * The number of bytes required to represent a primitive {@code long} value.
   *
   * <p>Prefer {@link Long#BYTES} instead.
   */
  public static final int BYTES = Long.BYTES;

  /**
   * The largest power of two that can be represented as a {@code long}.
   *
   * @since 10.0
   */
  public static final long MAX_POWER_OF_TWO = 1L << (Long.SIZE - 2);

 * successive readings of "now" in the same process.
 *
 * <p>In contrast, <i>wall time</i> is a reading of "now" as given by a method like
 * {@link System#currentTimeMillis()}, best represented as an {@link java.time.Instant}. Such values
 * <i>can</i> be subtracted to obtain a {@link Duration} (such as by {@link Duration#between}), but

public final class Shorts extends ShortsMethodsForWeb {
  private Shorts() {}

  /**
   * The number of bytes required to represent a primitive {@code short} value.
   *
   * <p>Prefer {@link Short#BYTES} instead.
   */
  public static final int BYTES = Short.BYTES;

  /**
   * The largest power of two that can be represented as a {@code short}.
   *
   * @since 10.0
   */

public final class Shorts extends ShortsMethodsForWeb {
  private Shorts() {}

  /**
   * The number of bytes required to represent a primitive {@code short} value.
   *
   * <p>Prefer {@link Short#BYTES} instead.
   */
  public static final int BYTES = Short.BYTES;

  /**
   * The largest power of two that can be represented as a {@code short}.
   *
   * @since 10.0
   */

   * are expected.
   *
   * @param string the string representation of a {@code float} value
   * @return the floating point value represented by {@code string}, or {@code null} if {@code
   *     string} has a length of zero or cannot be parsed as a {@code float} value
   * @throws NullPointerException if {@code string} is {@code null}
   * @since 14.0
   */

   * are expected.
   *
   * @param string the string representation of a {@code double} value
   * @return the floating point value represented by {@code string}, or {@code null} if {@code
   *     string} has a length of zero or cannot be parsed as a {@code double} value
   * @throws NullPointerException if {@code string} is {@code null}
   * @since 14.0
   */