Given this Spring Boot event listener code, what will be printed when new MyEvent("Hello") is published?

Given this Spring Boot event listener code, what will be printed when new MyEvent("Hello") is published?

@Component
public class MyListener {
  @EventListener
  public void onMyEvent(MyEvent event) {
    System.out.println("Event received: " + event.getMessage());
  }
}

public class MyEvent {
  private final String message;
  public MyEvent(String message) { this.message = message; }
  public String getMessage() { return message; }
}