JEP 502, now completed for JDK 25, introduces the Stable Values API, allowing developers to create computed constants—immutable values initialized at most once. This API targets application startup performance issues caused by eager initialization of complex objects. Unlike traditional final fields, stable values can be initialized on-demand while benefiting from JVM optimizations. The StableValue class holds a single value, initialized via the orElseSet() method, ensuring thread-safe initialization. This API addresses common pitfalls of lazy initialization, streamlining object creation and improving concurrency.
The Stable Values API, defined in JEP 502, introduces computed constants which allow developers to create immutable value holders initialized at most once, improving app performance.
By using the Stable Values API, developers can address startup performance issues by initializing objects on-demand rather than at construction time, ensuring flexibility and optimization.
Collection
[
|
...
]