docs: protected void cancelWorker(
              HttpServletRequest request, IPortletExecutionWorker<?> portletExecutionWorker) {
          final IPortletWindowId portletWindowId = portletExecutionWorker.getPortletWindowId();
          final IPortletWindow portletWindow =
                  this.portletWindowRegistry.getPortletWindow(request, portletWindowId);
          this.logger.warn(
                  "{} has not completed, adding to hung-worker cleanup queue: {}",
                  portletExecutionWorker,
                  portletWindow);
  
          portletExecutionWorker.cancel();
  
          this.portletExecutionEventFactory.publishPortletHungEvent(
                  request, this, portletExecutionWorker);
          hungWorkers.offer(portletExecutionWorker);
      }