RFR: 8230220: java/net/HttpURLConnection/HttpURLProxySelectionTest.java fails intermittently

[Jaikiran Pai]

Can I please get a review and a sponsor for a patch which fixes the
issue noted in [1]? The patch is available as a webrev at [2].

This is a newly added testcase as part of a patch that I recently
contributed for [3]. As noted by Daniel in [1], the intermittent failure
is a result of a race condition in dealing with the member variables,
used in the test, across 2 different threads.

[1] https://bugs.openjdk.java.net/browse/JDK-8230220

[2] http://cr.openjdk.java.net/~jpai/webrev/8230220/1/webrev/

[3] https://bugs.openjdk.java.net/browse/JDK-8177648

-Jaikiran