Integer pageNumber = (Integer) _pageNumbers.get(_currentPageIndex++); _pageChannel.readPage(buffer, pageNumber.intValue());
Integer pageNumber = _pageNumbers.get(_currentPageIndex++); _pageChannel.readPage(buffer, pageNumber);
  public boolean getNextPage(ByteBuffer buffer) throws IOException {    if (_pageNumbers.size() > _currentPageIndex) {      Integer pageNumber = (Integer) _pageNumbers.get(_currentPageIndex++);      _pageChannel.readPage(buffer, pageNumber.intValue());      return true;    } else {      return false;    }  }