Ausführen nicht-blockierender Hintergrundaufgaben mit Async

@Service
public class NotificationService {
 
    @Async
    public CompletableFuture<String> sendEmailNotification(String recipientEmail) {
        // Simulating a background task
        String status = "Delivered to: " + recipientEmail;
        return CompletableFuture.completedFuture(status);
    }
}