s=[127.0.0.1:5555]
calling compareTo(127.0.0.1:5555, 127.0.0.1:5555) 1000000 times took 10ms, result=0
calling compareTo(127.0.0.1:5555, 127.0.0.1:5555) 1000000 times took 37ms, result=0
calling compareTo(127.0.0.1:5555, 127.0.0.1:5555) 1000000 times took 35ms, result=0
calling compareTo(127.0.0.1:5555, 127.0.0.1:5556) 1000000 times took 37ms, result=-1
taking the hash code of 127.0.0.1:5555(2130711988) took 142ms
-- address is null
-- address is null