if (service == null)
        error("Non existent service %s", s);
      else {
        if (service.isRunning()) {
          try {
            String result = service.stop();
            if (result != null)
              error("Failed to stop: %s", result);
          }
          catch (Exception e) {
            exception(e, "Could not stop service %s due to %s", s, e.getMessage());