docs: @Nonnull
    public FineUploader5Retry setAutoAttemptDelay (@Nonnegative final int nAutoAttemptDelay)
    {
      ValueEnforcer.isGE0 (nAutoAttemptDelay, "AutoAttemptDelay");
      m_nRetryAutoAttemptDelay = nAutoAttemptDelay;
      return this;
    }