} finally {
            lock.unlock();
        }
    }

    private int getAvailablePort() {
        int first = current;
        while (true) {
            current++;
            if (current > endPort) {
                current = startPort;
            }
            int candidate = current;
            if (allocated.contains(candidate) == false && portDetector.isAvailable(candidate)) {
                allocated.add(candidate);

        long result = current.skip(n);
        if (result > 0) {
          return result;
        }
        advance();
      }
    }
    return 0;
  }

  @Override
  public boolean ready() throws IOException {
    return (current != null) && current.ready();
  }

  @Override
  public void close() throws IOException {
    if (current != null) {
      try {
        current.close();

     */
    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, returns the default current page number.
     *
     * @return the current page number
     */
    public int getCurrentPageNumber() {
        if (currentPageNumber <= 0) {

        double z = a.getAndAdd(y);
        assertBitEquals(x, z);
        assertBitEquals(x + y, a.get());
      }
    }
  }

  /** addAndGet adds given value to current, and returns current value */
  public void testAddAndGet() {
    for (double x : VALUES) {
      for (double y : VALUES) {
        AtomicDouble a = new AtomicDouble(x);
        double z = a.addAndGet(y);

							<i class='fa fa-download nav-icon' aria-hidden="true"></i>
							<p><la:message key="labels.menu_backup" /></p>
						</a></li></c:if>

					<c:if test="${fe:permission('admin-maintenance-view')}">
					<li class="nav-item">
						<a href="${fe:url('/admin/maintenance/')}"

            - name: elastic+elasticsearch+%BRANCH%+multijob+platform-support-darwin
              kill-phase-on: NEVER
              current-parameters: true
              git-revision: true
            - name: elastic+elasticsearch+%BRANCH%+multijob+platform-support-unix
              kill-phase-on: NEVER
              current-parameters: true
              git-revision: true
            - name: elastic+elasticsearch+%BRANCH%+multijob+platform-support-windows

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

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

    }

    /**
     * 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.

    }

    /**
     * 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