2.2.4

• Improved write performance of weakKeys (orbit/orbit#144)
• Improved write performance of expireAfterWrite (orbit/orbit#144)
• Fixed GC churn caused by scheduling due to ForkJoinPool wrapping tasks (orbit/orbit#144)
• Avoids multiple reads from the map returned by loadAll (potentially expensive if lazy view)
• Prevents GC nepotism in write buffer (SingleConsumerQueue)

WARNING: Periodic maintenance was broken; this release should not be used (was live for 5 hours).

2.2.3

Cache

• Stronger protection against excess scheduling (#57)
• Avoids admitting an entry that exceeds the maximum weight
• More graceful error handling for removal notifications due to a rejecting executor

Guava

• Forwards default methods in the asMap view to atomic implementations

2.2.2

• Fixed AsyncLoadingCache with refresh-after-write from prematurely replacing the value

2.2.1

Cache

• Added optimized Spliterator for concurrent stream processing
• Handle race condition in the default implementation of replaceAll

2.2.0

Cache

• Added AsyncCacheLoader to simplify loading from an asynchronous data source (#53)
• Handle race condition in the default removeIf for values and entrySet views

2.1.0

Cache

• Added CaffeineSpec to simplify creating caches from an external configuration file (#37)
• Fast path to skip usage tracking for the maximum size policy when less than 50% full
• Improved automatic refresh error handling

JCache

• Support automatic refresh as a configuration option
• Friendlier CaffeineConfiguration initial settings (SO)
• Fixed expiration bugs (SO)

Collections

• Removed ConcurrentLinkedStack, a @Beta API not subject to semver
• Scheduled SingleConsumerQueue for removal in the next major release (3.0.0)

2.0.3

JCache

• Fixed statistics average operation time not being reported in microseconds
• Fixed early expiration due to convertion into microseconds, not milliseconds (#40)
• Ensured that events are fired in entry order by always being sent within the atomic block
• Improved performance, largely by avoiding slow calls for the current time unless required

2.0.2

• Fixed NPE due to improperly scheduled write task when the computation returns null (#35)

2.0.1

• Fixed OSGi manifests (#33)

2.0.0

A major revision that includes API incompatible changes.

Cache

• Replaced LRU with W-TinyLfu eviction policy
• Inspect whether stats are enabled in the Policy
• CacheLoader support for checked exceptions (rethrown as CompletionException)
• RemovalListener now uses friendlier syntax for lambdas (removed RemovalNotification)
• Avoid excessive scheduling of the maintenace task
• Removed NonReentrantLock
• Removed tracing packages

JCache

• Renamed CopyStrategy to Copier