Shutdown Spring Boot command-line application

If you have a SpringBootApplication which implements the CommandLineRunner interface and wish to terminate it after running the override run method, here is it:

@SpringBootApplication
public class DemoApplication implements CommandLineRunner {

  SpringApplication app = new SpringApplicationBuilder()
                .sources(DemoApplication.class)
                .web(false).build();

  springApplication.run(args).close();

  @Overrride
  public void run(String... strings) throws Exception {
    // Code
  }

}