Request for approval - 8189646: sun/security/ssl/SSLSocketImpl/SSLSocketCloseHang.java failed with "java.net.SocketTimeoutException: Read timed out"

[Rob McKenna]

Looking to backport this test fix:

Bug: https://bugs.openjdk.java.net/browse/JDK-8189646
Changeset: http://hg.openjdk.java.net/jdk/jdk/rev/a7d101e56b36
Review: http://mail.openjdk.java.net/pipermail/security-dev/2017-November/016492.html

Patch applies cleanly.

    -Rob