Spring @ExceptionHandler and multi-threading

Question

I\'ve got the following controller advice:

@ControllerAdvice
public class ExceptionHandlerAdvice {

    @ExceptionHandler(NotCachedException.class)
    @Resp         


        

Answer 1

The default exception handling machenism does not work in case of @Async Enabled. To handle exception thrown from methods annotated with @Async, you need to implement a custom AsyncExceptionHandler as.

public class AsyncExceptionHandler implements AsyncUncaughtExceptionHandler{
    @Override
    public void handleUncaughtException(Throwable ex, Method method, Object... params) {
        // Here goes your exception handling logic.

    }
}

Now You need to configure this customExceptionHandler in you Application class as

@EnableAsync
public class Application implements AsyncConfigurer {
     @Override Executor getAsyncExecutor(){
      // your ThreadPoolTaskExecutor configuration goes here. 
}


@Override
public AsyncUncaughExceptionHandler getAsyncUncaughtExceptionHandler(){
   return new AsyncExceptionHandler();
}

Note: Make sure in order to make your AsyncExceptionHandler work you need to implement AsyncConfigurer in your Application class.