RFR: 8214782: Add missing access barriers on CLD handle area

[Per Liden]

Thanks Erik!

/Per

On 12/5/18 12:11 PM, Erik Österlund wrote:
> Hi Per,
> 
> Looks good.
> 
> Thanks,
> /Erik
> 
> On 2018-12-04 13:48, Per Liden wrote:
>> The CLD handle area contains raw oops. Those oops should be 
>> manipulated using NativeAccess barriers. Two such barriers are 
>> currently missing.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8214782
>> Webrev: http://cr.openjdk.java.net/~pliden/8214782/webrev.0
>>
>> /Per