The change fixes regression from JDK-8299414. There is a deadlock between JvmtiVTMSTransitionDisabler and EscapeBarrier when virtual threads are in mount/unmount transition: EscapeBarrier requests deoptimization which requires thread suspension. JvmtiVTMSTransitionDisabler ctor waits until all in progress VTMS transitions complete, but they cannot be completed as thread is suspended. To avoid the deadlock mount/unmount transitions should be completed before EscapeBarrier stuff.
------------- Commit messages: - fix Changes: https://git.openjdk.org/jdk/pull/14233/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=14233&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8308978 Stats: 10 lines in 1 file changed: 6 ins; 4 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/14233.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/14233/head:pull/14233 PR: https://git.openjdk.org/jdk/pull/14233
