RFR: 8027221 test/java/net/URLPermission/nstest/LookupTest.java failing intermittently, output insufficient

[Michael McMahon]

This is a test fix. The test currently uses a fixed port number
(in the policy file and Java test)

We need to change to use a shell script so that a port can be
chosen dynamically and the appropriate policy file created.

The change also adds the correct bug number to a different test
change I pushed on Monday.

http://cr.openjdk.java.net/~michaelm/8027221/webrev.1/

Thanks
Michael