RFR: 8326643: JDK server does not send a dummy change_cipher_spec record after HelloRetryRequest message [v7]

[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

Prasadrao Koppula has updated the pull request incrementally with one additional commit since the last revision:

  JDK-8326643

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Changes:
  - all: https://git.openjdk.org/jdk/pull/18372/files
  - new: https://git.openjdk.org/jdk/pull/18372/files/02bb8ddf..8507c444

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18372&range=06
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18372&range=05-06

  Stats: 17 lines in 1 file changed: 0 ins; 8 del; 9 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