RFR: 8256302: releasing oopStorage when deflating allows for faster deleting

[David Holmes]

On Tue, 22 Nov 2022 17:52:45 GMT, Daniel D. Daugherty <dcubed at openjdk.org> wrote:

> Releasing ObjectMonitor oopStorage earlier when deflating allows ObjectMonitor
> deletion by a JavaThread (usually the MonitorDeflationThread) to happen while a
> ThreadBlockInVM helper is in place. This should improve time-to-safepoint.

I'm really not following the conversation around "we can't do release while _thread_blocked and so we can't release in the destructor" - when would we call the destructor whilst _thread_blocked? And why?

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PR: https://git.openjdk.org/jdk/pull/11296