@Async in Spring doesn't work in Service class?

Question

@Async method in @Service annotated class in standalone Spring Boot application doesn\'t run asynchronously. What am I doing wrong?

When I

Answer 1

Workaround is:

@EnableAsync
@Service("ip-service")
public class ImageProcessorService implements IIMageProcessorService {
    
    @Autowired
    @Qualifier("ip-service")
    ImageProcessorService ipService;

    public void downloadAllImages(Run lastRun) {
        // this method calls downloadAnSave() in loop and should run asynchronously....
        ipService.downloadAnSave(productId, imageUrl);
    }

    @Async
    @Override
    public boolean downloadAnSave(String productId, String imageUrl) {
        //
    }
}

With such approach you call method of proxy, not the class instance. The same approach can be used with other tools working with proxies, e.g. @Transactional etc.