RFR: 8277090 : jsr166 refresh for jdk19

[Doug Lea]

On Mon, 2 May 2022 10:42:35 GMT, Rémi Forax <forax at openjdk.org> wrote:

>> Most AutoCloseables do not mention this in class-level javadocs. Is there a reason you think this one should?
>
> close() is now equivalent to the method shutdownAndAwaitTermination() shown in the javadoc so i believe , replacing it with a try-with-resources is better in term of documenting how an executor service can be used

OK, done (see https://bugs.openjdk.java.net/browse/JDK-8285450)

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PR: https://git.openjdk.java.net/jdk/pull/8490