RFR: 8260923: Add more tests for SSLSocket input/output shutdown [v2]

[Abdul Kolarkunnu]

> There is a lack of tests in the area of  java.net.Socket.shutdownInput() and java.net.Socket.shutdownOutput() , so added more tests in this area of with different TLS versions. Please review.

Abdul Kolarkunnu has updated the pull request incrementally with one additional commit since the last revision:

  8260923: Add more tests for SSLSocket input/output shutdown

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/2745/files
  - new: https://git.openjdk.java.net/jdk/pull/2745/files/f6a41313..b0157da7

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2745&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2745&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 1 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2745.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2745/head:pull/2745

PR: https://git.openjdk.java.net/jdk/pull/2745