RFR: 8277881 Missing SessionID in TLS1.3 resumption in compatibility mode [v2]

[Daniel Jeliński]

> All TLS 1.3 handshakes in compatibility mode must send a non-empty SessionID field. Currently TLS1.3 session resumptions are sending empty session ID. This patch fixes that problem.
> 
> All jdk_core tests passed. The newly added check passes with the patch, fails without it.

Daniel Jeliński has updated the pull request incrementally with one additional commit since the last revision:

  Update copyright year

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/6583/files
  - new: https://git.openjdk.java.net/jdk/pull/6583/files/a01a3070..f62fb604

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=6583&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=6583&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6583.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6583/head:pull/6583

PR: https://git.openjdk.java.net/jdk/pull/6583