RFR: JDK-8319413: Start of release updates for JDK 23

[Joe Darcy]

On Fri, 3 Nov 2023 23:52:45 GMT, Chen Liang <liach at openjdk.org> wrote:

>> Time to start making preparations for JDK 23.
>
> src/java.base/share/classes/jdk/internal/classfile/Classfile.java line 1:
> 
>> 1: /*
> 
> `latestMajorVersion` below should be updated to return `JAVA_23_VERSION` as well.

Good catch; fixed.

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PR Review Comment: https://git.openjdk.org/jdk/pull/16505#discussion_r1382295414