RFR: 8254315: Shenandoah: Concurrent weak reference processing [v12]

[Aleksey Shipilev]

On Tue, 27 Oct 2020 14:54:01 GMT, Roman Kennke <rkennke at openjdk.org> wrote:

>> src/hotspot/share/gc/shenandoah/shenandoahConcurrentMark.inline.hpp line 264:
>> 
>>> 262:         marked = mark_context->mark_strong(obj, marked_first);
>>> 263:       } else {
>>> 264:         marked = mark_context->mark_final(obj, marked_first);
>> 
>> Is this `mark_final` actually `mark_weak`?
>
> We could name it so, but it really means 'reachable through a FinalReference' so 'finalizably reachable' and 'marked final(izable)' seems the more correct term. It is weaker than 'strong' though, so yeah we could rename this. WDYT?

I sent you a patch with this rename and collateral improvements. This discussion can be resolved.

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PR: https://git.openjdk.java.net/jdk/pull/505