private void displayTaskStatistic() {
    rightColumn.removeAllComponents();
    UnresolvedTaskByAssigneeWidget unresolvedTaskByAssigneeWidget =
        new UnresolvedTaskByAssigneeWidget();
    unresolvedTaskByAssigneeWidget.setSearchCriteria(statisticSearchCriteria);
    rightColumn.addComponent(unresolvedTaskByAssigneeWidget);

    UnresolvedTaskByPriorityWidget unresolvedTaskByPriorityWidget =
        new UnresolvedTaskByPriorityWidget();
    unresolvedTaskByPriorityWidget.setSearchCriteria(statisticSearchCriteria);
    rightColumn.addComponent(unresolvedTaskByPriorityWidget);

    UnresolvedTaskByStatusWidget unresolvedTaskByStatusWidget = new UnresolvedTaskByStatusWidget();
    unresolvedTaskByStatusWidget.setSearchCriteria(statisticSearchCriteria);
    rightColumn.addComponent(unresolvedTaskByStatusWidget);
  }