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Caffeine is a Java 8 based caching library that includes additional specialized data structures not provided by the excellent standard library.
- ConcurrentLinkedStack: A lock-free stack that employs elimination and combining to reduce contention.
- SingleConsumerQueue: A lock-free queue that supports concurrent producers, is restricted to a single consumer, and employs combining to reduce contention.
A high performance cache with a Google Guava inspired API. This implementation draws on the author's experience designing ConcurrentLinkedHashMap and co-authoring Guava's Cache. The API is extended to include an asynchronous cache and to expose low-level options like changing the maximum size, expiration timeouts, and traversing in retention order.
Cache extensions include tracing, simulation, JSR-107 JCache integration, and Guava adapters.
