var x [1]struct{}
	_ = x[osMetricRemoveAll-0]
	_ = x[osMetricMkdirAll-1]
	_ = x[osMetricMkdir-2]
	_ = x[osMetricRename-3]
	_ = x[osMetricOpenFileW-4]
	_ = x[osMetricOpenFileR-5]
	_ = x[osMetricOpenFileWFd-6]
	_ = x[osMetricOpenFileRFd-7]
	_ = x[osMetricOpen-8]
	_ = x[osMetricOpenFileDirectIO-9]
	_ = x[osMetricLstat-10]
	_ = x[osMetricRemove-11]
	_ = x[osMetricStat-12]

	var x [1]struct{}
	_ = x[ErrSTSNone-0]
	_ = x[ErrSTSAccessDenied-1]
	_ = x[ErrSTSMissingParameter-2]
	_ = x[ErrSTSInvalidParameterValue-3]
	_ = x[ErrSTSWebIdentityExpiredToken-4]
	_ = x[ErrSTSClientGrantsExpiredToken-5]
	_ = x[ErrSTSInvalidClientGrantsToken-6]
	_ = x[ErrSTSMalformedPolicyDocument-7]
	_ = x[ErrSTSInsecureConnection-8]
	_ = x[ErrSTSInvalidClientCertificate-9]

        A = FF(A, B, C, D, X[4], 3);
        D = FF(D, A, B, C, X[5], 7);
        C = FF(C, D, A, B, X[6], 11);
        B = FF(B, C, D, A, X[7], 19);
        A = FF(A, B, C, D, X[8], 3);
        D = FF(D, A, B, C, X[9], 7);
        C = FF(C, D, A, B, X[10], 11);
        B = FF(B, C, D, A, X[11], 19);
        A = FF(A, B, C, D, X[12], 3);
        D = FF(D, A, B, C, X[13], 7);
        C = FF(C, D, A, B, X[14], 11);

  public void testSerialization() throws Exception {
    AtomicDoubleArray x = new AtomicDoubleArray(SIZE);
    for (int i = 0; i < SIZE; i++) {
      x.set(i, (double) -i);
    }
    AtomicDoubleArray y = serialClone(x);
    assertTrue(x != y);
    assertEquals(x.length(), y.length());
    for (int i = 0; i < SIZE; i++) {
      assertBitEquals(x.get(i), y.get(i));
    }

    assertFalse(entrySet.remove(immutableEntry(20, 'X')));
    assertFalse(entrySet.remove(immutableEntry(15, 'X')));
  }

  public void testRowSize() {
    table =
        sortedTable =
            create(
                "a", 2, 'X', "a", 2, 'X', "b", 3, 'X', "b", 2, 'X', "c", 10, 'X', "c", 10, 'X', "c",
                20, 'X', "d", 15, 'X', "d", 20, 'X', "d", 1, 'X', "e", 5, 'X');

   * computeMeanSafely.
   */
  private static void assertMean(int x, int y) {
    int expectedMean = computeMeanSafely(x, y);
    assertEquals(expectedMean, IntMath.mean(x, y));
    assertEquals(
        "The mean of x and y should equal the mean of y and x", expectedMean, IntMath.mean(y, x));
  }

  /**
   * Computes the mean in a way that is obvious and resilient to overflow by using BigInteger

	var x [1]struct{}
	_ = x[OpConnect-1]
	_ = x[OpConnectResponse-2]
	_ = x[OpPing-3]
	_ = x[OpPong-4]
	_ = x[OpConnectMux-5]
	_ = x[OpMuxConnectError-6]
	_ = x[OpDisconnectClientMux-7]
	_ = x[OpDisconnectServerMux-8]
	_ = x[OpMuxClientMsg-9]
	_ = x[OpMuxServerMsg-10]
	_ = x[OpUnblockSrvMux-11]
	_ = x[OpUnblockClMux-12]
	_ = x[OpAckMux-13]
	_ = x[OpRequest-14]
	_ = x[OpResponse-15]

	// Re-run the stringer command to generate them again.
	var x [1]struct{}
	_ = x[lcEventSrc_None-0]
	_ = x[lcEventSrc_Heal-1]
	_ = x[lcEventSrc_Scanner-2]
	_ = x[lcEventSrc_Decom-3]
	_ = x[lcEventSrc_Rebal-4]
	_ = x[lcEventSrc_s3HeadObject-5]
	_ = x[lcEventSrc_s3GetObject-6]
	_ = x[lcEventSrc_s3ListObjects-7]
	_ = x[lcEventSrc_s3PutObject-8]
	_ = x[lcEventSrc_s3CopyObject-9]
	_ = x[lcEventSrc_s3CompleteMultipartUpload-10]
}

        assertEquals(BigIntegerMath.log2(valueOf(x), mode), LongMath.log2(x, mode));
      }
    }
  }

  /* Relies on the correctness of isPowerOfTwo(long). */
  public void testLog2Exact() {
    for (long x : POSITIVE_LONG_CANDIDATES) {
      // We only expect an exception if x was not a power of 2.
      boolean isPowerOf2 = LongMath.isPowerOfTwo(x);
      try {
        assertEquals(x, 1L << LongMath.log2(x, UNNECESSARY));

    }
    return 1L << -Long.numberOfLeadingZeros(x - 1);
  }

  /**
   * Returns the largest power of two less than or equal to {@code x}. This is equivalent to {@code
   * checkedPow(2, log2(x, FLOOR))}.
   *
   * @throws IllegalArgumentException if {@code x <= 0}
   * @since 20.0
   */
  public static long floorPowerOfTwo(long x) {
    checkPositive("x", x);