RFR(S): 8173013: JVMTI tagged object access needs G1 pre-barrier

[sangheon]

Hi Kim,

On 02/03/2017 01:05 PM, Kim Barrett wrote:
>> On Feb 3, 2017, at 1:41 PM, sangheon <sangheon.kim at oracle.com> wrote:
>>> "The reference in this tag map could be the only (implicitly weak)
>>> reference to that object. If we hand it out we need to keep it live wrt
>>> SATB marking similar to other j.l.ref.Reference referents."
>> I like this comment.
>> If other reviewers don't have better suggestion, I will upload the revised patch with this.
> Looks good with something like Thomas's improved comment.
>
Thanks for the review and all the discussion for this CR.
And Thomas' comment is the candidate for now.

Sangheon