when(backingMap.get(KEY)).thenReturn(current);
    // it's ok if removal fails: another thread may have done the remove
    when(backingMap.remove(KEY, current)).thenReturn(false);

    assertEquals(countToRemove, multiset.remove(KEY, countToRemove));
    assertEquals(0, current.get());
  }

  public void testRemoveExactly() {

     */
    public void setPageSize(final int pageSize) {
        this.pageSize = pageSize;
    }

    /**
     * Gets the current page number.
     * If current page number is not set or is invalid, returns the default current page number.
     *
     * @return the current page number
     */
    public int getCurrentPageNumber() {
        if (currentPageNumber <= 0) {

    /** The record number of the first record on the current page (1-based). */
    protected long currentStartRecordNumber;

    /** The record number of the last record on the current page (1-based). */
    protected long currentEndRecordNumber;

    /** A list of page numbers for pagination display (typically a range around the current page). */
    protected List<String> pageNumberList;

    }

    /**
     * Gets the current page number being displayed.
     *
     * @return The current page number
     */
    public int getCurrentPageNumber() {
        if (currentPageNumber <= 0) {
            currentPageNumber = getDefaultCurrentPageNumber();
        }
        return currentPageNumber;
    }

    /**
     * Sets the current page number.
     *

    }

    /**
     * Gets the current page number.
     *
     * @return The current page number.
     */
    public int getCurrentPageNumber() {
        if (currentPageNumber <= 0) {
            currentPageNumber = getDefaultCurrentPageNumber();
        }
        return currentPageNumber;
    }

    /**
     * Sets the current page number.
     *

    }

    /**
     * Gets the current page number.
     * @return The current page number.
     */
    public int getCurrentPageNumber() {
        if (currentPageNumber <= 0) {
            currentPageNumber = getDefaultCurrentPageNumber();
        }
        return currentPageNumber;
    }

    /**
     * Sets the current page number.
     * @param currentPageNumber The current page number.

     */
    public void setPageSize(final int pageSize) {
        this.pageSize = pageSize;
    }

    /**
     * Gets the current page number being displayed.
     * If not set or invalid, returns the default current page number.
     *
     * @return the current page number
     */
    public int getCurrentPageNumber() {
        if (currentPageNumber <= 0) {

     */
    public void setPageSize(final int pageSize) {
        this.pageSize = pageSize;
    }

    /**
     * Gets the current page number (1-based).
     * If the current page number is not set or is invalid (≤0), returns the default page number.
     *
     * @return the current page number
     */
    public int getCurrentPageNumber() {
        if (currentPageNumber <= 0) {

     */
    public void setPageSize(final int pageSize) {
        this.pageSize = pageSize;
    }

    /**
     * Gets the current page number being displayed.
     * If the current page number is not set or is invalid, returns the default page number.
     *
     * @return the current page number
     */
    public int getCurrentPageNumber() {
        if (currentPageNumber <= 0) {

    service.shutdown();
    try {
      // Wait for half the duration of the timeout for existing tasks to terminate
      if (!service.awaitTermination(halfTimeoutNanos, TimeUnit.NANOSECONDS)) {
        // Cancel currently executing tasks
        service.shutdownNow();
        // Wait the other half of the timeout for tasks to respond to being cancelled
        service.awaitTermination(halfTimeoutNanos, TimeUnit.NANOSECONDS);
      }