"five", 5,
            "six", 6,
            "seven", 7,
            "eight", 8),
        "one",
        1,
        "two",
        2,
        "three",
        3,
        "four",
        4,
        "five",
        5,
        "six",
        6,
        "seven",
        7,
        "eight",
        8);
    assertMapEquals(
        ImmutableMap.of(
            "one", 1,

            right ^= fval;
        }

        right = right << 31 | right >>> 1;
        work = (leftt ^ right) & 0xaaaaaaaa;
        leftt ^= work;
        right ^= work;
        leftt = leftt << 31 | leftt >>> 1;
        work = (leftt >>> 8 ^ right) & 0x00ff00ff;
        right ^= work;
        leftt ^= work << 8;
        work = (leftt >>> 2 ^ right) & 0x33333333;
        right ^= work;

    assertThat(Adapters.INTEGER_AS_LONG.toDer(-549755813887L)).isEqualTo(bytes)
  }

  @Test fun `eight zeros`() {
    val bytes = "020200ff".decodeHex()
    assertThat(Adapters.INTEGER_AS_LONG.fromDer(bytes)).isEqualTo(255)
    assertThat(Adapters.INTEGER_AS_LONG.toDer(255)).isEqualTo(bytes)
  }

  @Test fun `eight ones`() {
    val bytes = "0201ff".decodeHex()

   * {@code int} value in little-endian order.
   *
   * @throws IllegalStateException if {@code bits() < 32}
   */
  public abstract int asInt();

  /**
   * Returns the first eight bytes of {@linkplain #asBytes() this hashcode's bytes}, converted to a
   * {@code long} value in little-endian order.
   *
   * @throws IllegalStateException if {@code bits() < 64}
   */
  public abstract long asLong();

   * perform better than its longhand equivalent, but should not perform worse.
   *
   * @since 12.0
   */
  HashCode hashInt(int input);

  /**
   * Shortcut for {@code newHasher().putLong(input).hash()}; returns the hash code for the given
   * {@code long} value, interpreted in little-endian byte order. The implementation <i>might</i>

   * perform better than its longhand equivalent, but should not perform worse.
   *
   * @since 12.0
   */
  HashCode hashInt(int input);

  /**
   * Shortcut for {@code newHasher().putLong(input).hash()}; returns the hash code for the given
   * {@code long} value, interpreted in little-endian byte order. The implementation <i>might</i>

   * a qualifying run is found, its hextets are replaced by the sentinel value -1.
   *
   * @param hextets {@code int[]} mutable array of eight 16-bit hextets
   */
  private static void compressLongestRunOfZeroes(int[] hextets) {
    int bestRunStart = -1;
    int bestRunLength = -1;
    int runStart = -1;
    for (int i = 0; i < hextets.length + 1; i++) {

   * {@code int} value in little-endian order.
   *
   * @throws IllegalStateException if {@code bits() < 32}
   */
  public abstract int asInt();

  /**
   * Returns the first eight bytes of {@linkplain #asBytes() this hashcode's bytes}, converted to a
   * {@code long} value in little-endian order.
   *
   * @throws IllegalStateException if {@code bits() < 64}
   */
  public abstract long asLong();

   * a qualifying run is found, its hextets are replaced by the sentinel value -1.
   *
   * @param hextets {@code int[]} mutable array of eight 16-bit hextets
   */
  private static void compressLongestRunOfZeroes(int[] hextets) {
    int bestRunStart = -1;
    int bestRunLength = -1;
    int runStart = -1;
    for (int i = 0; i < hextets.length + 1; i++) {

  public static final Integer four = 4;
  public static final Integer five = 5;
  public static final Integer six = 6;
  public static final Integer seven = 7;
  public static final Integer eight = 8;
  public static final Integer nine = 9;
  public static final Integer m1 = -1;
  public static final Integer m2 = -2;
  public static final Integer m3 = -3;
  public static final Integer m4 = -4;