Impossible d'utiliser @Async dans Spring Boot

Je veux utiliser le mécanisme asynchrone de spring boot, voici mon code.

@Override
public Future<Result> getResult(String name); 

Et j'ajoute l'annotation @Async sur la méthode d'une autre classe.

@Slf4j
@Configuration
@EnableAsync
public class AsyncConfig implements AsyncConfigurer {

    private static final int MAX_POOL_SIZE = 50;

    private static final int CORE_POOL_SIZE = 20;

    @Override
    public Executor getAsyncExecutor() {
        ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor();
        taskExecutor.setBeanName("taskExecutor");
        taskExecutor.setMaxPoolSize(MAX_POOL_SIZE);
        taskExecutor.setCorePoolSize(CORE_POOL_SIZE);
        taskExecutor.setThreadNamePrefix("async-task-thread-pool");
        taskExecutor.setWaitForTasksToCompleteOnShutdown(true);
        taskExecutor.setAwaitTerminationSeconds(60 * 10);
        taskExecutor.setRejectedExecutionHandler(
            (r, executor) -> log.warn("current thread pool is full, reject to invoke."));
        taskExecutor.initialize();
        return taskExecutor;
    }

    @Override
    public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
        return (ex, method, params) ->
        {
            log.error("invoke async method occurs error. method: {}, params: {}",
                method.getName(), JSON.toJSONString(params), ex);
            throw new RuntimeException();
        };
    }

}