RFR: 8331682: Slow networks/Impatient clients can potentially send unencrypted TLSv1.3 alerts that won't parse on the server

[Artur Barashev]

https://bugs.openjdk.org/browse/JDK-8331682

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Commit messages:
 - 8331682: Slow networks/Impatient clients can potentially send unencrypted TLSv1.3 alerts that won't parse on the server

Changes: https://git.openjdk.org/jdk/pull/21043/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21043&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8331682
  Stats: 326 lines in 2 files changed: 289 ins; 0 del; 37 mod
  Patch: https://git.openjdk.org/jdk/pull/21043.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21043/head:pull/21043

PR: https://git.openjdk.org/jdk/pull/21043