new CollectionBenchmarkSampleData(true, random, 0.8, size);
    setToTest = (Set<Element>) impl.create(sampleData.getValuesInSet());
  }

  @Benchmark
  int iteration(int reps) {
    int x = 0;

    for (int i = 0; i < reps; i++) {
      for (Element y : setToTest) {
        x ^= System.identityHashCode(y);
      }
    }
    return x;
  }

  static void checkAvalanche(HashFunction function, int trials, double epsilon) {
    Random rand = new Random(0);
    int keyBits = 32;
    int hashBits = function.bits();
    for (int i = 0; i < keyBits; i++) {
      int[] same = new int[hashBits];
      int[] diff = new int[hashBits];
      // go through trials to compute probability
      for (int j = 0; j < trials; j++) {
        int key1 = rand.nextInt();

     */
    private static byte[] buildCreateBodyNoContexts(byte oplock, byte openFlags, int createAction, long ctime, long atime, long mtime,
            long chtime, long allocSize, long eof, int attrs, byte[] fileId) {
        byte[] body = new byte[2 + 2 + 4 + 8 + 8 + 8 + 8 + 8 + 8 + 4 + 4 + 16 + 4 + 4];
        int i = 0;
        SMBUtil.writeInt2(89, body, i); // StructureSize
        body[i + 2] = oplock;

    }

    @Override
    protected int writeDataWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    @Override
    protected int readSetupWireFormat(final byte[] buffer, final int bufferIndex, final int len) {
        return 0;
    }

    @Override
    protected int readParametersWireFormat(final byte[] buffer, final int bufferIndex, final int len) {
        return 0;
    }

    this.elementSet = elementSet;
    this.cumulativeCounts = cumulativeCounts;
    this.offset = offset;
    this.length = length;
  }

  private int getCount(int index) {
    return (int) (cumulativeCounts[offset + index + 1] - cumulativeCounts[offset + index]);
  }

  @Override
  Entry<E> getEntry(int index) {

    List<Element> queryList = Lists.newArrayListWithCapacity(numQueries);

    int numGoodQueries = (int) (numQueries * hitRate + 0.5);

    // add good queries
    int size = elementsInSet.size();
    if (size > 0) {
      int minCopiesOfEachGoodQuery = numGoodQueries / size;
      int extras = numGoodQueries % size;

      for (int i = 0; i < minCopiesOfEachGoodQuery; i++) {

   */
  public AtomicDoubleArray(double[] array) {
    int len = array.length;
    long[] longArray = new long[len];
    for (int i = 0; i < len; i++) {
      longArray[i] = doubleToRawLongBits(array[i]);
    }
    this.longs = new AtomicLongArray(longArray);
  }

  /**
   * Returns the length of the array.
   *
   * @return the length of the array
   */
  public final int length() {
    return longs.length();
  }

    }

    /** Default page size for pagination */
    public static final int DEFAULT_PAGE_SIZE = 20;

    /** Default current page number */
    public static final int DEFAULT_CURRENT_PAGE_NUMBER = 1;

    /** Total number of records available */
    private int allRecordCount;

    /** Total number of pages available */
    private int allPageCount;

    /** Flag indicating if previous page exists */

     */
    public static final int DEFAULT_PAGE_SIZE = 20;

    /**
     * Default current page number for pagination.
     */
    public static final int DEFAULT_CURRENT_PAGE_NUMBER = 1;

    /**
     * Total number of records.
     */
    private int allRecordCount;

    /**
     * Total number of pages.
     */
    private int allPageCount;

    /**

    /** Default page size for user list pagination */
    public static final int DEFAULT_PAGE_SIZE = 20;

    /**
     * Default current page number for pagination.
     */
    public static final int DEFAULT_CURRENT_PAGE_NUMBER = 1;

    /** The total number of records */
    private int allRecordCount;

    /** The total number of pages */
    private int allPageCount;

    /** Whether there is a previous page available */