On Fri, 11 Sep 2020 00:19:47 GMT, Coleen Phillimore <cole...@openjdk.org> wrote:
>> Leonid Mesnik has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> 8253033: CheckUnhandledOops check fails in ThreadSnapshot::initialize(...)
>
> src/hotspot/share/services/threadService.cpp line 888:
>
>> 886: _thread_status == java_lang_Thread::IN_OBJECT_WAIT_TIMED) {
>> 887:
>> 888: Handle obj = ThreadService::get_current_contended_monitor(thread);
>
> There must be a safepoint here then.
> I think this would be better and safer if blocker_object and
> blocker_object_owner are Handles. Can you change them to
> Handles?
I can't see anywhere a safepoint check would occur in that code. This issue was
flagged as being in Loom so perhaps the
loom code is different and is what introduces the safepoint check? But I agree
with Coleen that the best solution is to
just use Handles.
-------------
PR: https://git.openjdk.java.net/jdk/pull/123
