RFR of JDK-8073080: TEST_BUG: sun/rmi/transport/tcp/DeadCachedConnection.java fails due to "ConnectException: Connection refused to host"

[Hamlin Li]

Would you please review the below patch?

bug: https://bugs.openjdk.java.net/browse/JDK-8073080
webrev: http://cr.openjdk.java.net/~mli/8073080/webrev.00/

Thank you
-Hamlin