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 ...

A preview feature in Java is one that is not yet added permanently even though its design, specification, and implementation are complete. Presently Java has quite a few preview features in the ...