JDK-8371922 : Remove unused NonblockingQueue class
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2025-11-14
  • Updated: 2025-11-24
  • Resolved: 2025-11-14
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JDK 26
26 b25Fixed
Related Reports
Relates :  
JDK-8342382 - Implement JEP 522: G1 GC: Improve Throughput by Reducing Synchronization
Description
NonblockingQueue provides a nonblocking intrusive FIFO. It was originally developed for use by the G1 post-barrier, as an internal to G1 implementation detail. It was later moved to utilities because there were plans to use it in other contexts. Those plans never came to fruition. And after JDK-8342382, it is no longer used by the G1 post-barrier. So it's now (somewhat complicated) dead code.
Comments
Changeset: 91b97a49 Branch: master Author: Kim Barrett <kbarrett@openjdk.org> Date: 2025-11-14 20:32:12 +0000 URL: https://git.openjdk.org/jdk/commit/91b97a49d48ee8528b34486172293fd3a68ae3c7
14-11-2025
A pull request was submitted for review. Branch: master URL: https://git.openjdk.org/jdk/pull/28330 Date: 2025-11-14 18:43:04 +0000
14-11-2025