[jdk15u-dev] Integrated: 8266949: Check possibility to disable OperationTimedOut on Unix

[Yuri Nesterenko]

I'd like to backport this fix for consistency. The patch applies cleanly after 8196100 in both repositories, some obvious related tests do pass

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Commit messages:
 - Backport e6705c0e4b548a83197c3ea70bdef25ec65d4c00

Changes: https://git.openjdk.java.net/jdk15u-dev/pull/131/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk15u-dev&pr=131&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8266949
  Stats: 37 lines in 2 files changed: 14 ins; 17 del; 6 mod
  Patch: https://git.openjdk.java.net/jdk15u-dev/pull/131.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk15u-dev pull/131/head:pull/131

PR: https://git.openjdk.java.net/jdk15u-dev/pull/131