docs: @Subscribe
    public void onQuit(AggregatedQuitEvent e) {
      if (summaryFile != null) {
        try {
          Persister persister = new Persister();
          persister.write(new MavenFailsafeSummaryModel(summaryListener.getResult()), summaryFile);
        } catch (Exception x) {
          junit4.log("Could not serialize summary report.", x, Project.MSG_WARN);
        }
      }
    }