* value).hashCode()}.
   *
   * <p>This method always return the value specified by {@link Long#hashCode()} in java, which
   * might be different from {@code ((Long) value).hashCode()} in GWT because {@link
   * Long#hashCode()} in GWT does not obey the JRE contract.
   *
   * <p><b>Java 8+ users:</b> use {@link Long#hashCode(long)} instead.
   *
   * @param value a primitive {@code long} value

   * value).hashCode()}.
   *
   * <p>This method always return the value specified by {@link Long#hashCode()} in java, which
   * might be different from {@code ((Long) value).hashCode()} in GWT because {@link
   * Long#hashCode()} in GWT does not obey the JRE contract.
   *
   * <p><b>Java 8+ users:</b> use {@link Long#hashCode(long)} instead.
   *
   * @param value a primitive {@code long} value

                new long[] {(long) 2, (long) 3, (long) 4}))
        .isEqualTo(2);
    assertThat(
            Longs.indexOf(
                new long[] {(long) 2, (long) 2, (long) 3, (long) 4, (long) 2, (long) 3, (long) 4},
                new long[] {(long) 2, (long) 3, (long) 4}))
        .isEqualTo(1);
    assertThat(
            Longs.indexOf(
                new long[] {(long) 4, (long) 3, (long) 2},

  public final double getAndUpdate(int i, DoubleUnaryOperator updaterFunction) {
    while (true) {
      long current = longs.get(i);
      double currentVal = longBitsToDouble(current);
      double nextVal = updaterFunction.applyAsDouble(currentVal);
      long next = doubleToRawLongBits(nextVal);
      if (longs.compareAndSet(i, current, next)) {
        return currentVal;
      }
    }
  }

  /**

    Converter<Long, String> reverseConverter = Longs.stringConverter().reverse();
    SerializableTester.reserializeAndAssert(reverseConverter);
  }

  @GwtIncompatible // J2CL generics problem
  public void testSerialization_andThen() {
    Converter<String, Long> converterA = Longs.stringConverter();
    Converter<Long, String> reverseConverter = Longs.stringConverter().reverse();

  private UnsignedLongs() {}

  public static final long MAX_VALUE = -1L; // Equivalent to 2^64 - 1

  /**
   * A (self-inverse) bijection which converts the ordering on unsigned longs to the ordering on
   * longs, that is, {@code a <= b} as unsigned longs if and only if {@code flip(a) <= flip(b)} as
   * signed longs.
   */
  private static long flip(long a) {
    return a ^ Long.MIN_VALUE;
  }

  /**

      public long getLongLittleEndian(byte[] array, int offset) {
        long bigEndian = theUnsafe.getLong(array, (long) offset + BYTE_ARRAY_BASE_OFFSET);
        // The hardware is big-endian, so we need to reverse the order of the bytes.
        return Long.reverseBytes(bigEndian);
      }

      @Override
      public void putLongLittleEndian(byte[] array, int offset, long value) {

@GwtCompatible
@ElementTypesAreNonnullByDefault
final class Hashing {
  private Hashing() {}

  /*
   * These should be ints, but we need to use longs to force GWT to do the multiplications with
   * enough precision.
   */
  private static final long C1 = 0xcc9e2d51;
  private static final long C2 = 0x1b873593;

  /*
   * This method was rewritten in Java from an intermediate step of the Murmur hash function in

    return fmix(h1, Ints.BYTES);
  }

  @Override
  public HashCode hashLong(long input) {
    int low = (int) input;
    int high = (int) (input >>> 32);

    int k1 = mixK1(low);
    int h1 = mixH1(seed, k1);

    k1 = mixK1(high);
    h1 = mixH1(h1, k1);

    return fmix(h1, Longs.BYTES);
  }

  @Override
  public HashCode hashUnencodedChars(CharSequence input) {

@GwtCompatible
@ElementTypesAreNonnullByDefault
final class Hashing {
  private Hashing() {}

  /*
   * These should be ints, but we need to use longs to force GWT to do the multiplications with
   * enough precision.
   */
  private static final long C1 = 0xcc9e2d51;
  private static final long C2 = 0x1b873593;

  /*
   * This method was rewritten in Java from an intermediate step of the Murmur hash function in