RFR: 8326643: JDK server does not send a dummy change_cipher_spec record after HelloRetryRequest message

[Prasadrao Koppula]

JDK server does not send a dummy change_cipher_spec record after HelloRetryRequest message.

According to RFC 8446 (Middlebox Compatibility Mode), if the client sends a non-empty session ID in the ClientHello message, the server sends a dummy change_cipher_spec (CCS) record immediately after its first handshake message. This may either be after a ServerHello or a HelloRetryRequest.

https://datatracker.ietf.org/doc/html/rfc8446#appendix-D.4

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Commit messages:
 - JDK-8326643

Changes: https://git.openjdk.org/jdk/pull/18372/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18372&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8326643
  Stats: 10 lines in 1 file changed: 9 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/18372.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18372/head:pull/18372

PR: https://git.openjdk.org/jdk/pull/18372