JEP 502 introduces the Stable Values API in JDK 25, enhancing application startup performance by allowing deferred immutability. This feature enables thread-safe, at-most-once initialization of comple ...

Scoped Values is now in JDK 21 as a Preview Feature. Alongside Virtual Threads and Structured Concurrency, Scoped Values add to the growing list of enhancements to Java and Project Loom.

Stable values combine immutable state and flexible timing of initialization, enabling optimizations for user code previously available only to JDK code. Startup times for Java applications would ...

Java collection classes allow a developer to keep track of contained items in one of two ways, either by an indexed count or a key. This creates an obvious limitation where multiple values can’t be ...