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

[Hui Shi]

On Sat, 14 Nov 2020 07:40:07 GMT, Hui Shi <hshi at openjdk.org> wrote:

>> @huishi-hs Testing should start automatically, and will appear here when you push to any branch in your fork that is not `master`: https://github.com/huishi-hs/jdk/actions (unless you disabled this in the repo settings).
>> 
>> As I said, the `/test` command does not work at this time.
>
> @JornVernee  Thanks!  I didn't enable https://github.com/huishi-hs/jdk/actions. Now it works.

Close this. PR is only for presubmit testing.

-------------

PR: https://git.openjdk.java.net/jdk/pull/1213