8178074: (ch) java/nio/channels/etc/AdaptorCloseAndInterrupt.java: add instrumentation
Summary: Add some print statements to indicate state at strategic points
Reviewed-by: chegar

8152749: Mark AdaptorCloseAndInterrupt.java as intermittently failing
8152755: Problem list java/nio/file/WatchService/MayFlies.java
Reviewed-by: alanb

8078334: Mark regression tests using randomness
Reviewed-by: xuelei, alanb

7184932: Remove the temporary Selector usage in the NIO socket adapters
Reviewed-by: alanb