Integrated: 8256830: misc tests failed with "assert(env->is_enabled(JVMTI_EVENT_OBJECT_FREE)) failed: checking"

[Coleen Phillimore]

On Wed, 25 Nov 2020 18:40:49 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> The ServiceThread cleaning used a stale ObjectFree state when calling remove_dead_entries, because another thread had concurrently set is_enabled to false.  Add a lock around setting/resetting the lock event state and retest the state under a lock.  Ran the test 100s of time without failure, where otherwise it fails very quickly.
> Tested with tier2,3 and running tiers 4,5,6 in progress.
> Thanks to Kim for his previous feedback.

This pull request has now been integrated.

Changeset: 3a11009d
Author:    Coleen Phillimore <coleenp at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/3a11009d
Stats:     20 lines in 3 files changed: 17 ins; 1 del; 2 mod

8256830: misc tests failed with "assert(env->is_enabled(JVMTI_EVENT_OBJECT_FREE)) failed: checking"

Reviewed-by: kbarrett, sspitsyn, dholmes

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PR: https://git.openjdk.java.net/jdk/pull/1439