docs: public void perform(TaskRequest req, TaskResponse res) {
  		
  		HttpServletResponse resp = (HttpServletResponse) response.evaluate(req, res);
  		Integer sc = (Integer) statusCode.evaluate(req, res);
  		String msg = (String) message.evaluate(req, res);
  		
  		try {
  
  			resp.sendError(sc, msg);
  		} catch (Throwable t) {
  			throw new RuntimeException("Error setting status code " + sc + " with message " + msg, t);
  		}
  	}