RFR: 8257497: Key identifier compliance issue [v2]

[Hai-May Chao]

> This change is made for compliance with RFC 5280 section 4.2.1.1 for Authority Key Identifier extension.

Hai-May Chao has updated the pull request incrementally with one additional commit since the last revision:

  Test case added and not overriding -ext fix

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/2343/files
  - new: https://git.openjdk.java.net/jdk/pull/2343/files/88cae5cc..567c2004

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2343&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2343&range=00-01

  Stats: 111 lines in 2 files changed: 92 ins; 19 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2343.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2343/head:pull/2343

PR: https://git.openjdk.java.net/jdk/pull/2343