RFR: 8266936: Add a finalization JFR event [v2]

[Alan Bateman]

On Wed, 19 May 2021 07:50:55 GMT, Erik Gahlin <egahlin at openjdk.org> wrote:

> I wonder if there needs to be one event per finalized object?
> 
> Perhaps a counter per class would be as useful, i.e. jdk.FinalizationStatistics, and if it could be implemented in the VM, without other implications, that would be great.
> 
> Such an event could be enabled by default and provide much greater value than an event that users would need to know about and configure themselves, which 99,99% of all user will not do.

So some statistics or periodic event that N instances of class C were registered or queued? I think you are right that this would be a lot more valuable.

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PR: https://git.openjdk.java.net/jdk/pull/4101