RFR: Merge jdk17 [v2]

[Mikael Vidstedt]

On Mon, 2 Aug 2021 23:53:59 GMT, Jesper Wilhelmsson <jwilhelm at openjdk.org> wrote:

>> Forwardport JDK 17 -> JDK 18
>
> Jesper Wilhelmsson has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Revert "8271150: Remove EA from JDK 17 version string starting with Initial RC promotion on Aug 5, 2021(B34)"
>   
>   This reverts commit f8fb5713074b8960f5530d7aca954f84d57c1f30.

Marked as reviewed by mikael (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/4964