public void doExecuteTests() {
    if (WikiImportProperty.isImported(data)) {
      importWikiPages();
    }

    try {
      performExecution();
    } catch (Exception e) {
      // Is this necessary? Or is the exception already handled by stopTestSystem?
      mainFormatter.errorOccurred(e);
      LOG.log(Level.WARNING, "error registered in test system", e);
    }

    exitCode = mainFormatter.getErrorCount();
  }