RFR (S) 8250589: Move Universe::_reference_pending_list into OopHandle

[David Holmes]

Hi Coleen,

On 27/07/2020 11:05 pm, coleen.phillimore at oracle.com wrote:
> Summary: Use synchronization to reference the _reference_pending_list 
> with OopHandle

Why isn't ownership of the Heap_lock sufficient for the synchronization 
any more?

Thanks,
David

(and apologies as I'm done for the day so won't see your response till 
morning.)

> Tested with tier1-6 with 100% passed (no other existing test failures!)
> 
> open webrev at http://cr.openjdk.java.net/~coleenp/2020/8250589.01/webrev
> bug link https://bugs.openjdk.java.net/browse/JDK-8250589
> 
> Thanks,
> Coleen