OpenJDK News Roundup: Key Derivation, Scoped Values, Compact Headers, JFR Method Timing & Tracing
Briefly

In May 2025, the OpenJDK community saw significant progress with various JEPs (JDK Enhancement Proposals) moving closer to finalization for JDK 25. Notably, JEP 510 for the Key Derivation Function API and JEP 506 for Scoped Values are set to finalize after preview rounds, enhancing cryptographic functions and data sharing in Java. Additionally, JEP 519 proposes to introduce Compact Object Headers to improve memory efficiency. This flurry of activity showcases the project's dynamic development and commitment to enhancing Java's capabilities.
JEP 510 proposes the finalization of the Key Derivation Function API after one round of preview, enhancing cryptographic capabilities in Java.
JEP 506, Scoped Values, aims for finalization after four rounds of preview to facilitate the sharing of immutable data across threads.
JEP 519, Compact Object Headers, aims to optimize memory usage in Java objects, enhancing performance significantly for various applications.
The recent activity in the OpenJDK ecosystem highlights a vibrant development process with multiple JEPs advancing towards finalization in JDK 25.
Read at InfoQ
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