@NotNull
  private RequestFailedException parseYouTrackError(@NotNull HttpResponse response) {
    try {
      return new YouTrackRequestFailedException(this, GSON.fromJson(TaskResponseUtil.getResponseContentAsReader(response),
                                                                    YouTrackErrorInfo.class));
    }
    catch (IOException e) {
      return new RequestFailedException(e);
    }
  }
@NotNull
  private RequestFailedException parseYouTrackError(@NotNull HttpResponse response)