// was some asymmetry so that the initial v0 and v1 differ from v2 and v3.
    private long v0 = 0x736f6d6570736575L;
    private long v1 = 0x646f72616e646f6dL;
    private long v2 = 0x6c7967656e657261L;
    private long v3 = 0x7465646279746573L;

    // The number of bytes in the input.
    private long b = 0;

    // The final 64-bit chunk includes the last 0 through 7 bytes of m followed by null bytes

  public ListenableScheduledFuture<?> scheduleAtFixedRate(
      Runnable command, long initialDelay, long period, TimeUnit unit) {
    throw new UnsupportedOperationException("scheduleAtFixedRate is not supported.");
  }

  @Override
  public ListenableScheduledFuture<?> scheduleWithFixedDelay(
      Runnable command, long initialDelay, long delay, TimeUnit unit) {

  private static final long[] positive = new long[ARRAY_SIZE];
  private static final long[] nonzero = new long[ARRAY_SIZE];
  private static final long[] longs = new long[ARRAY_SIZE];

  @BeforeExperiment
  void setUp() {
    for (int i = 0; i < ARRAY_SIZE; i++) {
      positive[i] = randomPositiveBigInteger(Long.SIZE - 2).longValue();
      nonzero[i] = randomNonZeroBigInteger(Long.SIZE - 2).longValue();

      buf[((x1 << 16) + (x2 << 8) + x3) % bufLen] ^= i % 256;
    }
    assertEquals(0xeaa3b1c985261632L, h);
  }

  private static long remix(long h) {
    h ^= h >>> 41;
    h *= 949921979;
    return h;
  }

  private static byte getChar(long h) {
    return (byte) ('a' + ((h & 0xfffff) % 26));
  }

    protected int pageSize;

    protected int currentPageNumber;

    protected long allRecordCount;

    protected String allRecordCountRelation;

    protected int allPageCount;

    protected boolean existNextPage;

    protected boolean existPrevPage;

    protected long currentStartRecordNumber;

    protected long currentEndRecordNumber;

    protected List<String> pageNumberList;

   * happens first. Returns the total number of bytes skipped.
   */
  static long skipUpTo(InputStream in, long n) throws IOException {
    long totalSkipped = 0;
    // A buffer is allocated if skipSafely does not skip any bytes.
    byte[] buf = null;

    while (totalSkipped < n) {
      long remaining = n - totalSkipped;
      long skipped = skipSafely(in, remaining);

      if (skipped == 0) {

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

        .isEqualTo(1);
    assertThat(
            Longs.indexOf(
                new long[] {(long) 2, (long) 3, (long) 2, (long) 3, (long) 4, (long) 2, (long) 3},
                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 CacheStats(
            Long.MAX_VALUE,
            Long.MAX_VALUE,
            Long.MAX_VALUE,
            Long.MAX_VALUE,
            Long.MAX_VALUE,
            Long.MAX_VALUE);
    CacheStats smallCacheStats = new CacheStats(1, 1, 1, 1, 1, 1);

    CacheStats sum = smallCacheStats.plus(maxCacheStats);
    assertEquals(Long.MAX_VALUE, sum.requestCount());

  public void testCheckedCast() {
    for (long value : UNSIGNED_INTS) {
      assertThat(UnsignedInts.toLong(UnsignedInts.checkedCast(value))).isEqualTo(value);
    }
    assertCastFails(1L << 32);
    assertCastFails(-1L);
    assertCastFails(Long.MAX_VALUE);
    assertCastFails(Long.MIN_VALUE);
  }

  private static void assertCastFails(long value) {
    try {
      UnsignedInts.checkedCast(value);