Spring Async Uncaught Exception handler

Question

@Override
@Async
public void asyncExceptionTest() {
    int i=1/0;
}

How can I log this using Spring Async framework without having to put try catc

Answer 1

First off all, you should create a custom exception handler class like following;

@Component
public class AsyncExceptionHandler implements AsyncUncaughtExceptionHandler {

        private final Logger logger = LoggerFactory.getLogger(AsyncExceptionHandler.class);

        @Override
        public void handleUncaughtException(Throwable ex, Method method, Object... params) {
            logger.error("Unexpected asynchronous exception at : "
                    + method.getDeclaringClass().getName() + "." + method.getName(), ex);
        }

    }

After that, you should set your customized exception handler class in your configuration like following;

@Configuration
@EnableAsync
public class AsyncConfig extends AsyncConfigurerSupport {

    @Autowired
    private AsyncExceptionHandler asyncExceptionHandler;

    @Override
    public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
        return asyncExceptionHandler;
    }

}

Note : Injectable exception handler is an option. You can create a new instance for every exception. My advice is using Injection for exception handler class, because spring's default scope is singleton so there is no need to create new instance for every exception.