Jaroslaw Zaczyk

https://github.com/spring-projects/spring-session/blob/5f5168814d9bf35bee3b8965ffde7bb1ae91cd93/spring-session-data-redis/src/main/java/org/springframework/session/data/redis/RedisIndexedSessionRepository.java#L428 In my particular case when I had to mock up this class in my tests, it's impossible to mock return type of `findById(String id)` method because instead of general...