code: public function createHttpResponseFromException(\Exception $exception)
      {
          $httpResponse = HttpResponse::create();
          $json = [];
          $json['jsonrpc'] = '2.0';
          $json['error'] = [];
  
          if ($exception instanceof Exceptions\ErrorException) {
              $json['error']['code'] = $exception->getCode();
              $json['error']['message'] = $exception->getMessage();
  
              if ($exception->getData()) {
                  $json['error']['data'] = $exception->getData();
              }
  
              $json['id'] = $exception->getId();
          } else {
              $json['error']['code'] = -32603;
              $json['error']['message'] = 'Internal error';
              $json['id'] = null;
          }
  
          $httpResponse->headers->set('Content-Type', 'application/json');
          $httpResponse->setContent(\json_encode($json));
          $httpResponse->setStatusCode($this->errorCode);
  
          $this->dispatch(
              Event\HttpResponseEvent::EVENT,
              new Event\HttpResponseEvent($httpResponse)
          );
  
          return $httpResponse;
      }
docs: Create new HttpResponse from exception.
  
  @param \Exception $exception
  
  @return HttpResponse