@Async 동작 원리

예제 코드 @Slf4j @Service @RequiredArgsConstructor public class Producer { private final EmailService emailService; public void doSomething() { emailService.send(); log.info(">>> doSomething"); } } @Slf4j @Service public class EmailService { @Async public void send() { log.info(">>> 이메일 전송 시작"); try { TimeUnit.SECONDS.sleep(1); } catch (InterruptedException e) { e.printStackTrace(); } log.info(">>> ..