On Sun, 29 Sep 2024 17:44:30 GMT, Attila Szegedi <att...@openjdk.org> wrote:
> Fixes a regression with #17818 where `ArrayList.subList(…).sort()` started > incrementing `ArrayList.modCount` resulting in some cases throwing a > `ConcurrentModificationException` where none was thrown before. > > This change keeps the optimization from #17818 but restores the behavior > where only sorting the `ArrayList` changes the mod count, but sorting its > sublists does not. I agree with just reverting the behaviour as discussed in JBS, but will leave the actual review for the libs folk. The more general question of when to trigger CME is a very thorny one. ------------- PR Comment: https://git.openjdk.org/jdk/pull/21250#issuecomment-2384699577
