[jdk11u-dev] RFR: 8267256: Extend minimal retry for loopback connections on Windows to PlainSocketImpl [v2]

[Mat Carter]

> Backport of JDK-8267256

Mat Carter 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 branch 'openjdk:master' into 8267256
 - Backport df332ff6e8bcee2cb5eeac1eefbc5c55a3fe8170
 - Backport 7e01bc967d00dce1791ef5cd31b8083751eb52e6
 - Backport c2fa441d8ded94241fdac7005d6420f99b38af0b

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Changes:
  - all: https://git.openjdk.java.net/jdk11u-dev/pull/628/files
  - new: https://git.openjdk.java.net/jdk11u-dev/pull/628/files/13b8b310..ab91119e

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=628&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=628&range=00-01

  Stats: 2710 lines in 176 files changed: 1086 ins; 143 del; 1481 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/628.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/628/head:pull/628

PR: https://git.openjdk.java.net/jdk11u-dev/pull/628