Merge "DO NOT MERGE: Stabilize testConcurrentServerSocketCloseReliablyThrows." into nougat-mr1-cts-dev am: 00a16ee49d  -s ours am: 79ca4a55f5 am: 872100e72f
am: 62315edbfb  -s ours

Change-Id: I84cbadbf2150f13c922f52f734d56a3663712ea1