'onCacheMissResume' stores everything into cache

[cybuch]

I use caffeine AsyncLoadingCache and on async reload if I return empty mono with signature Mono<Signal> it's not stored into cache. However I use it with CacheMono just like the example from documentation

CacheMono.lookup(cache.synchronous().asMap(), request)
                .onCacheMissResume { someMono(request) }

and there's a problem. Everything returned from someMono is cached - empty signal, error signal and so on. Have you thought about not storing errors in cache?

[Simon Baslé]

superseded by #237