RFR: 8298868: Update EngineCloseOnAlert.java for changes to TLS implementation [v5]

[Matthew Donovan]

> Refactored the code a little bit and updated the test for changes to the TLS state machine.

Matthew Donovan has updated the pull request incrementally with one additional commit since the last revision:

  updated SSL context

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/11903/files
  - new: https://git.openjdk.org/jdk/pull/11903/files/a8753fdc..2adfcda8

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=11903&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=11903&range=03-04

  Stats: 14 lines in 1 file changed: 4 ins; 7 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/11903.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11903/head:pull/11903

PR: https://git.openjdk.org/jdk/pull/11903