JDK-8339207 : Specifications for value classes and objects
  • Type: Sub-task
  • Component: specification
  • Priority: P4
  • Status: In Progress
  • Resolution: Unresolved
  • Submitted: 2024-08-29
  • Updated: 2025-09-26
Related Reports
Relates :  
JDK-8366372 - Valhalla: memory model rules for strict instance fields
Relates :  
JDK-8366271 - Valhalla: verification adjustments for operations on 'uninitialized'
Relates :  
JDK-8366368 - 5.5: Clarify memory model requirements of initialization checks
Description
Update the specifications included in documentation builds to address value classes and objects, including:

- Adding a spec change document describing JLS changes
- Adding a spec change document describing JVMS changes
- Updating the Java Object Serialization Specification
- Updating the JVM Tool Interface
Comments
Proposed JLS & JVMS changes are here: https://cr.openjdk.org/~dlsmith/jep401/jep401-20250926/specs/value-objects-jls.html
26-09-2025