RFR: 8326705: Test CertMsgCheck.java fails to find alert certificate_required

[Sibabrata Sahoo]

On Wed, 5 Jun 2024 02:57:41 GMT, Anthony Scarpino <ascarpino at openjdk.org> wrote:

> Hi,
> 
> I need a review for this simple change to fix a threading problem with the test. The server thread was not completing before the check occurred on the main thread.  The failure showed up in windows and macos, but not linux.  With this fix, running 100 times, windows & macos showed no failures.
> 
> Tony

Marked as reviewed by ssahoo (Committer).

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PR Review: https://git.openjdk.org/jdk/pull/19553#pullrequestreview-2131781820