Require some information for caffeine cache.

[kamalnigam]

Hey,

• I would like to use caffeine in our project. We need to use only Java 1.8 in our project. Does caffeine have long-term support with Java 1.8?
• Can we set the max size (in bytes) of the cache in caffeine? Do we have only the below implementation?
  CacheBuilder.weigher(Weigher) and CacheBuilder. Maximum eight (long).
• How do you reset cache key expiry in caffeine?

[ben-manes]

1. Yes, in that critical bugs will be fixed but beyond that improvements will not be back ported (see https://openjdk.org/jeps/14). Be warned that Java 8 has reached end of life for public updates.
2. The weigher can be used for byte sizing. You have to define your own weigher since Java object sizes is a tricky (https://openjdk.org/jeps/8249196).
3. You might use expireAfter(Expiry) or the Cache.policy() methods if you need advanced functionality.