On Wed, 25 Aug 2021 22:05:24 GMT, Vladimir Ivanov <vliva...@openjdk.org> wrote:
> Get rid of WeakReference-based logic in > DirectMethodHandle::checkInitialized() and reimplement it with > `Unsafe::ensureClassInitialized()`/`shouldBeInitialized()`. > > The key observation is that `Unsafe::ensureClassInitialized()` does not block > the initializing thread. > > Also, removed `Unsafe::shouldBeInitialized()` in > `DMH::shouldBeInitialized(MemberName)` to save on calling into the VM. > `Unsafe::ensureClassInitialized()` already has a fast-path check which checks > whether the class is fully initialized or not. > > Testing: tier1 - tier6 This pull request has now been integrated. Changeset: faa942c8 Author: Vladimir Ivanov <vliva...@openjdk.org> URL: https://git.openjdk.java.net/jdk/commit/faa942c8ba8ad778b6be20ff6d98a5040a9079e9 Stats: 43 lines in 2 files changed: 5 ins; 28 del; 10 mod 8273000: Remove WeakReference-based class initialisation barrier implementation Reviewed-by: psandoz, mchung ------------- PR: https://git.openjdk.java.net/jdk/pull/5258
