JDK-8273920 : Release Note: Improve Compilation Replay
  • Type: Sub-task
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 18
  • Priority: P4
  • Status: Resolved
  • Resolution: Delivered
  • Submitted: 2021-09-17
  • Updated: 2021-11-30
  • Resolved: 2021-11-30
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JDK 18
18Resolved
Description
Compilation Replay has been improved to make it more stable and catch up with new JVM features.  Enhancements include:
- Best-effort support for hidden classes, allowing more cases involving invokedynamic, MethodHandles, and lambdas to replay successfully
- DumpReplay support for C1
- Incremental inlining support
- Numerous bug fixes to improve stability

Compilation Replay is a JVM feature of debug builds that is mainly used to reproduce crashes in the C1 or C2 JIT compilers.
Comments
Looks good to me, too. Thanks Dean!
30-11-2021
Thanks for updating, looks good.
30-11-2021
That looks good to me but maybe state that Compilation Replay is only available in debug versions of the JVM.
30-11-2021
[~thartmann] [~chagedorn], please review these release notes. Thanks.
29-11-2021