code: @Override
      public void stop() throws Exception {
          try {
              // close gui
              super.stop();
          } catch (Exception ex) {
              exit(255, new CouldNotPerformException("Could not proper stop " + JPService.getApplicationName(), ex));
          }
  
          // make sure all shutdown deamons are triggered
          exit();
      }
docs: {@inheritDoc}
  
  @throws Exception {@inheritDoc}