RFR: 8252871: fatal error: must own lock JvmtiThreadState_lock

[Yasumasa Suenaga]

On Mon, 7 Sep 2020 14:14:28 GMT, Robbin Ehn <rehn at openjdk.org> wrote:

> When these two methods (set_frame_pop/clear_frame_pop) are called in a handshake the requesting thread will have lock
> the JvmtiThreadState_lock. But the thread executing one of these in the handshake may not be the owner.
> So we only check that JvmtiThreadState_lock is locked.
> 
> When verifying the callers to these methods I notice "clear_to_frame_pop" was unused, so instead of fixing it I remove
> it.
> Passes testing locally, still running T3 and T7.
> 
> Now passed!

Thanks for catching up this. Looks good.

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Marked as reviewed by ysuenaga (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/60