RFR: 8247524: Remove unnecessary volatile qualifiers from member functions

[Kim Barrett]

> On Jun 15, 2020, at 1:59 AM, Stefan Karlsson <stefan.karlsson at oracle.com> wrote:
> 
> Looks good.

Thanks.

> StefanK
> 
> On 2020-06-15 01:15, Kim Barrett wrote:
>> Please review this change to oopDesc and Metadata classes, removing
>> unnecessary volatile qualifiers from some member functions.
>> 
>> This change also makes virtual overrides of the relevant functions
>> explicitly virtual.
>> 
>> While there, removed unnecessary workaround in oopDesc::klass_or_null_acquire.
>> 
>> After this change,
>>   egrep -r -H --exclude-dir=.hg "\)\s*(const |)\s*volatile" src/hotspot
>> finds nothing; there seem to be no remaining volatile qualified methods.
>> 
>> CR:
>> https://bugs.openjdk.java.net/browse/JDK-8247524
>> 
>> Webrev:
>> https://cr.openjdk.java.net/~kbarrett/8247524/open.00/
>> 
>> Testing:
>> mach5 tier1-3