code: public static void main(String[] args) {
  
          // PID file
          File pid = new File("ontrack.pid");
  
          // Runs the application
          SpringApplication application = new SpringApplication(Application.class);
          application.addListeners(new ApplicationPidFileWriter(pid));
          application.run(args);
      }
docs: Start-up point
  
  @param args Arguments passed to the program, they may contain configuration variables.