RFR: 8323693: Update some copyright announcements in the new files created in 8234502

[Chris Plummer]

On Sat, 13 Jan 2024 02:21:37 GMT, Lei Zaakjyu <duke at openjdk.org> wrote:

> see 'https://github.com/openjdk/jdk/pull/17398#pullrequestreview-1819022919'

Looks good.

-------------

Marked as reviewed by cjplummer (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/17412#pullrequestreview-1820135652