> This is a simple fix of three similar asserts.
> The `_target_jt->jvmti_vthread()` has to be used instead of
> `_target_jt->vthread()`.
> The `_target_jt->vthread()` can be outdated in some specific contexts as
> shown in the `hs_err` stack trace.
>
> I've seen similar issue and already fixed it in this fragment of code:
>
> class GetCurrentLocationClosure : public JvmtiUnitedHandshakeClosure {
> . . .
> void do_vthread(Handle target_h) {
> assert(_target_jt == nullptr || !_target_jt->is_exiting(), "sanity
> check");
> // use jvmti_vthread() as vthread() can be outdated
> assert(_target_jt == nullptr || _target_jt->jvmti_vthread() ==
> target_h(), "sanity check");
> . . .
>
> The issue above was fixed by replacing `_target_jt->vthread()` with
> `_target_jt->jvmti_vthread()`.
>
> There are three places which need to be fixed the same way:
> - `GetSingleStackTraceClosure::do_vthread(Handle target_h)`
> - `SetForceEarlyReturn::do_vthread(Handle target_h)`
> - `UpdateForPopTopFrameClosure::do_vthread(Handle target_h)`
>
> Testing:
> - Run mach5 tiers 1-6
Serguei Spitsyn has updated the pull request incrementally with one additional
commit since the last revision:
review: updated same clarifying comment in several spots
-------------
Changes:
- all: https://git.openjdk.org/jdk/pull/18806/files
- new: https://git.openjdk.org/jdk/pull/18806/files/55a8ed10..6ac3b54f
Webrevs:
- full: https://webrevs.openjdk.org/?repo=jdk&pr=18806&range=01
- incr: https://webrevs.openjdk.org/?repo=jdk&pr=18806&range=00-01
Stats: 8 lines in 3 files changed: 4 ins; 0 del; 4 mod
Patch: https://git.openjdk.org/jdk/pull/18806.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/18806/head:pull/18806
PR: https://git.openjdk.org/jdk/pull/18806
