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

7197491: update copyright year to match last edit in jdk8 jdk repository
Reviewed-by: chegar, ksrini

7043425: (fc) ClosedByInterruptException thrown but interrupt status not set
Reviewed-by: dholmes, chegar

6979009: (fc) FileChannel.read() fails to throw ClosedByInterruptException
Reviewed-by: forax, sherman, chegar