/**
  * @param \Exception $ex
  */
 public function logException(\Exception $ex)
 {
     if ($ex instanceof Exception) {
         $httpCode = $ex->getHTTPCode();
         $headers = $ex->getHTTPHeaders($this->server);
     } else {
         $httpCode = 500;
         $headers = [];
     }
     $this->server->httpResponse->addHeaders($headers);
     $this->server->httpResponse->setStatus($httpCode);
     $body = $this->generateBody($ex);
     $this->server->httpResponse->setBody($body);
     $this->sendResponse();
 }