code: protected Map<Long, Map<String, String>> getRequestAnswerMap(RequestContext requestContext) {
      @SuppressWarnings("unchecked")
      Map<Long,Map<String,String>> answers = (Map<Long,Map<String,String>>) requestContext.getRequest().getAttribute("commentAnswers");
      if (answers == null) {
        answers = new HashMap<>();
        requestContext.getRequest().setAttribute("commentAnswers", answers);
      }
      
      return answers;
    }
docs: Returns comment answers map from the request context. If map is not yet defined, new is created.
  
  @param requestContext request contract
  @return answer map