1. public void exit() {
  2.  
  3. final Test self = this;
  4.  
  5. Platform.runLater(new Runnable() {
  6.  
  7. @Override
  8. public void run() {
  9. self.frame.dispose();
  10. }
  11.  
  12. });
  13.  
  14. Platform.exit();
  15. }