RFR: 8257831: Suspend with handshakes [v2]

Mon Apr 19 18:22:30 UTC 2021

On Fri, 9 Apr 2021 15:25:16 GMT, Daniel D. Daugherty <dcubed at openjdk.org> wrote:

>> If we process the async suspension handshake we can go to safepoint.
>> And before safepoint we must drop the tty lock.
>
> Is this worth a comment above the `break_tty_lock_for_safepoint()` call?

I also thought we could remove this since we are already releasing it in the ThreadInVMForHandshake constructor above.

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PR: https://git.openjdk.java.net/jdk/pull/3191