[automerger skipped] Merge "DatagramChannelMulticastTest: Briefly wait for non-instantaneous reads." into oreo-cts-dev am: 54d41e651d am: 4d9c5ba680 am: 9cf7cd797a  -s ours
am: 08acc2eb0e  -s ours

Change-Id: I2503a161f7c518d05ea0077554d78a5a03985373