@Override
    public String toString() {
      if (ourTotalCount.get() == 0) {
        return "";
      }
      return String.format(Locale.ENGLISH, "Classes: %d\nBytes: %d\nBytes per class: %.2f%n", ourTotalCount.get(), ourTotalSize.get(),
                           ((double)ourTotalSize.get()) / ourTotalCount.get());
    }
@Override
    public String toString()