[jdk23] RFR: 8326705: Test CertMsgCheck.java fails to find alert certificate_required

[Anthony Scarpino]

Hi,

I need a review of this clean backport of this test fix to jdk23.

Tony

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Commit messages:
 - Backport 4ffc5e60776353b03e9a557c39148e378b1690e2

Changes: https://git.openjdk.org/jdk/pull/19917/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19917&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8326705
  Stats: 36 lines in 3 files changed: 13 ins; 5 del; 18 mod
  Patch: https://git.openjdk.org/jdk/pull/19917.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19917/head:pull/19917

PR: https://git.openjdk.org/jdk/pull/19917