caffeine

• Fixed frequency tracking of weak keys to use the object's identity hash code (#1902)
• Added support for underscores in CaffeineSpec when using numeric literals (#1890)
• Improved the external api to no longer lock when querying for the maximum size or weighted size (#1897)
• Added detection and recovery when a custom CompletableFuture is in an inconsistent state ([quarkus#50513](https://...

• Fixed characteristics returned by Spliterators (#1883)

• Fixed computeIfAbsent for an async cache's synchronous view to retry if incomplete
• Improved CaffeineSpec when being reflectively constructed (#1839)
• Improved the handling of negative durations with variable expiration
• Fixed intermittent null after replacing a weak/soft value (#1820)

Cache

• Added Sigstore signing of maven artifacts
• Added Expiry static factory methods (#1499)
• Migrated to JSpecify annotations (was checker framework)
• Fixed variable expiration calculation when nearing overflow
• Added logging when an async cache's removal listener fails
• Added an expiration write optimization to more operations...

• Added a workaround for a possible JDK concurrency bug with method handles (#1111)