public function getMessage()
 {
     if ($message = parent::getMessage()) {
         return $message;
     }
     $state = $this->getDispositionState();
     if ($state && isset($this->messages[$state])) {
         return $this->messages[$state];
     }
     return;
 }
 public function getMessage()
 {
     $message = (string) $this->data->errorCodeDescription;
     return $message ? $message : parent::getMessage();
 }