RFR: JDK-8319413: Start of release updates for JDK 23 [v4]

[Joe Darcy]

On Fri, 1 Dec 2023 08:54:06 GMT, Alan Bateman <alanb at openjdk.org> wrote:

> Looks good. I assume you'll bump the copyright header on the files that need it before integration, e.g. JavacTestingAbstractProcessor.

Right; I run a script to update the years of modified files.

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PR Comment: https://git.openjdk.org/jdk/pull/16505#issuecomment-1837247101