for review: 8236522: "always atomic" modifier for inline classes to enforce atomicity

[John Rose]

The “store store” bug is filed here:

https://bugs.openjdk.java.net/browse/JDK-8237741

I added some more explanatory text to the bug description.

> On Jan 15, 2020, at 7:11 AM, Tobias Hartmann <tobias.hartmann at oracle.com> wrote:
> 
> Hi John,
> 
> On 13.01.20 22:05, John Rose wrote:
>> P.S. The bigger question, which I am not qualified to answer,
>> is, “where should the store-store barrier be introduced?”
>> I just found a likely spot which fixed a bug.  There could
>> well be similar bugs in the woodwork which have not jumped
>> 0ut yet, which would be fixed by careful rethink of the
>> heap-buffering paths.
> 
> Right, could you please file a follow-up bug for that?
> I'll take a closer look once your changes are in.
> 
> Thanks,
> Tobias