docs: public static <K, V, C> Stream<CacheEntry<K, C>> filterAndConvert(Stream<CacheEntry<K, V>> stream,
             KeyValueFilterConverter<? super K, ? super V, C> filterConverter) {
        return stream.map(new FilterConverterAsCacheEntryFunction(filterConverter)).filter(
                StreamMarshalling.nonNullPredicate());
     }