ConcurrentLinkedHashMap --> Caffeine when Java-8 based

[ben-manes]

When transitioning to requiring Java 8, please upgrade to Caffeine. You know the details, so I won't bore you with the elevator pitch.

ConcurrentLinkedHashMap changes will continue to be minimal, even more so now, and driven by requests from Java 6 users unable to upgrade. Caffeine is ideally the upgrade path for Guava cache users too, which due to Android cannot be significantly modified.

[pron]

Thanks!