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it satisfies that

1. cache update strategy: LRU
2. thread safe
3. nonblocking save and get

Later it may support and manage distributed redis Now it is reactored with Redisson

it supports that

• define a maximum volume
• cache update strategy: LRU
• cache expires on write or last-read
• thread safe

But it is single-node management... Maybe zookeeper can be used for distributed version

• the throughput
• the thread-safe feature

Cache testedCache = Cache.newBuilder()
        .jedisPool(jedisPool)
        .maxVolume(maxValume)
        .expireAfterAccess(1, TimeUnit.SECONDS)
        .build();

• put value into cahce

  testedCache.set(key, value);

• get value from cache

  testedCache.get(key);