RFR: 8179503: Java should support GET OCSP calls [v2]

[Jamil Nimeh]

> This enhancement allows the underlying OCSP subsystem to submit OCSP requests using HTTP GET when the request is less than or equal to 255 bytes as documented in RFC 6960 and clarified in RFC 5019.

Jamil Nimeh has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains four additional commits since the last revision:

 - Merge
 - Change IO to use readExactlyNBytes method
 - Merge
 - 8179503: Java should support GET OCSP calls

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/1760/files
  - new: https://git.openjdk.java.net/jdk/pull/1760/files/32a09875..d63cb0c8

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1760&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1760&range=00-01

  Stats: 19823 lines in 712 files changed: 13707 ins; 3342 del; 2774 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1760.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1760/head:pull/1760

PR: https://git.openjdk.java.net/jdk/pull/1760