Hi, I have a piece of code in a reactive project that looks something like that (similar code for demo purposes):

@Cacheable(value =RedisCacheNames.CONSTANT,cacheManager ="redisCacheManager")publicMono<String>get(Integerid) {returnMono.just("result")          .doOnSuccess(s ->throwException())  }privatevoidthrowException() {thrownewRuntimeException();  }

I have a specific exception, but it basically extends fromRuntimeException.

I've been debugging a little, and it seems thatCacheAspectSupport had a piece of code added in commit8974da2 that changedReactiveCachingHandler from this:

returnadapter.fromPublisher(Mono.fromFuture(cachedFuture).switchIfEmpty(Mono.defer(() -> (Mono)evaluate(null,invoker,method,contexts))).flatMap(v ->evaluate(Mono.justOrEmpty(unwrapCacheValue(v)),invoker,method,contexts)));

to this:

returnadapter.fromPublisher(Mono.fromFuture(cachedFuture).switchIfEmpty(Mono.defer(() -> (Mono)evaluate(null,invoker,method,contexts))).flatMap(v ->evaluate(Mono.justOrEmpty(unwrapCacheValue(v)),invoker,method,contexts)).onErrorResume(RuntimeException.class,ex -> {try {getErrorHandler().handleCacheGetError((RuntimeException)ex,cache,key);returnevaluate(null,invoker,method,contexts);}catch (RuntimeExceptionexception) {returnMono.error(exception);}}));

The thing is, first evaluate call before the method execution sets the contexts.processed to true, and after my method throws the runtime exception, is caught by thisonErrorResume, which calls evaluate withcacheHit set tonull, and

if (contexts.processed) {returncacheHit;}

returnsnull.

Is this an actual issue or I am missing something?

As of now I've done a couple of extra tests, and it seems that I cannot throw aRuntimeException. I have two CacheManagers configured in my Spring Boot project, one for Caffeine and the other one for Redis. This only happens when using theRedisCacheManager as seen above.

I think this might be becauseCaffeineCache implementation ofCache returnsnull when the element is not present whereasRedisCache implementation returns a cachedFuture.

Thanks in advance for any help provided!