RFR: 8257497: Key identifier compliance issue [v3]

[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:

  API used to get AKID

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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/567c2004..2f5199ca

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2343&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2343&range=01-02

  Stats: 36 lines in 1 file changed: 30 ins; 0 del; 6 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