- Our current FIR caches are based on `ConcurrentMap` and thereby do not
support size and lifetime limits out of the box. For example,
first-layer caches with a limited size can speed up access of the most
frequently used elements, while having a small memory footprint.
- Caffeine is a modern and well optimized caching library that allows us
to create thread-safe and performant caches with various size or
lifetime limits.
- The cache must support concurrency because session components such as
symbol providers may be accessed concurrently once parallel resolve in
the Analysis API has been implemented (see KT-55750). Caffeine caches
support concurrency.
Marco Pennekamp
b805c6e32b