@SpringBootApplication
@Slf4j
public class Application implements CommandLineRunner {

  private volatile boolean keepRunning = true;

  public static void main(String[] args) {
    log.info("Started the console application");
    SpringApplication.run(Application.class, args);
    log.info("Exiting the console application");
  }

  @Override
  public void run(String... args) throws Exception {
    try {
      synchronized (this) {
        while (this.keepRunning) {
          log.info("App is running, blocking main thread until a shutdown notification");
          this.wait();
          log.info("Exiting the run() method");
        }
      }
    } catch (InterruptedException ex) {
      log.warn("Main thread interrupted. {}", ExceptionUtils.getStackTrace(ex));
    }
  }

  @PreDestroy
  public void shutdown() {
    synchronized (this) {
      log.info("Notifying the app to stop running");
      this.keepRunning = false;
      this.notify();
    }
  }

}