RFR: 8188055: (ref) Add Reference::refersTo predicate [v5]

[Kim Barrett]

> On Oct 20, 2020, at 3:21 AM, David Holmes <david.holmes at oracle.com> wrote:
> 
> On 20/10/2020 5:01 pm, Kim Barrett wrote:
>>> On Oct 20, 2020, at 2:09 AM, David Holmes <david.holmes at oracle.com> wrote:
>>> 
>>> I think that can be addressed by considering a Reference created with a null referent to be immediately cleared.
>> I think if it’s treated as immediately cleared then it should also be immediately enqueued.  But immediate
> 
> Mandy's comment implied that references with a null referent never get enqueued. Otherwise when would they get enqueued? There would be nothing to trigger it.

You said “immediately cleared”; that’s the trigger.  Mandy said “never cleared or enqueued”, which is different.