RFR: 8255883: Avoid duplicated GeneratedMethodAccessor when reflect method invoked from different threads [v6]

[Hui Shi]

On Sat, 14 Nov 2020 12:11:52 GMT, Jorn Vernee <jvernee at openjdk.org> wrote:

>> @JornVernee How can "ready" label be added to this PR? This PR has been reviewed. Would you help on this?
>
> @huishi-hs See the "Integration blocker" section in the PR body; you have a JBS issue and PR title mismatch.

After review PR/commit title is changed to align with JBS title to add ready label

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PR: https://git.openjdk.java.net/jdk/pull/1070