code: public static ConfigurableApplicationContext run(Class<?>[] primarySources,
  			String[] args) {
  		return new SpringApplication(primarySources).run(args);
  	}
docs: Static helper that can be used to run a {@link SpringApplication} from the
  specified sources using default settings and user supplied arguments.
  @param primarySources the primary sources to load
  @param args the application arguments (usually passed from a Java main method)
  @return the running {@link ApplicationContext}