RFR: 8256895: Add support for RFC 8954: Online Certificate Status Protocol (OCSP) Nonce Extension [v7]

[Hai-May Chao]

> This enhancement adds support for the nonce extension in OCSP request extensions by system property jdk.security.certpath.ocspNonce.
> 
> Please review the CSR at:
> https://bugs.openjdk.java.net/browse/JDK-8257766

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

  Set tmpExtensions to null instead of using emptyList()

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/2039/files
  - new: https://git.openjdk.java.net/jdk/pull/2039/files/b4b3a485..b334a5d0

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2039&range=06
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2039&range=05-06

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2039.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2039/head:pull/2039

PR: https://git.openjdk.java.net/jdk/pull/2039