RFR: JDK-8296149: Start of release updates for JDK 21

Tue Nov 29 04:21:14 UTC 2022

On Tue, 1 Nov 2022 05:49:25 GMT, Joe Darcy <darcy at openjdk.org> wrote:

> Usual start-of-release updates. Symbol updates in initial version reflect JDK 20 build 21.

Flipping the draft-bit off for this PR ahead of the upcoming start of JDK 21.

Symbol information now up-to-date as of JDK 20 b25.

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PR: https://git.openjdk.org/jdk/pull/10924