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Technology3h 32m ago

Java Enhancement Proposal 401, introducing value classes and objects, will be integrated into the OpenJDK mainline early next month targeting JDK 28.

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Open JDK

Who
Lois Foltan, Brian Goetz
What
Java Enhancement Proposal 401, introducing value classes and objects, will be integrated into the OpenJDK mainline early next month targeting JDK 28.
When
Mon, 15 Jun 2026 18:01:00 GMT · 3h 32m ago
Where
Open JDK ·
Why
This change is part of Project Valhalla, a long-running effort to address one of Java’s oldest performance limitations by removing object identity from Java types.
The Frontline Impact

How this affects you

This fundamental change to Java's object handling, after a decade of development, aims to improve performance and memory efficiency, affecting millions of developers worldwide as it becomes a core part of future Java applications, though it will require significant adaptation and understanding of deliberate breaking changes.

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