Please review the change at http://cr.openjdk.java.net/~weijun/8164656/webrev.00/
The old try-catch is only on send/receive, but NetClient.getInstance() could also timeout for TCP when it calls Socket::connect(dest,timeout). Therefore move the catch to a higher level.
The test is brand new and it's meant to replace existing BadKdc?.java, TcpTimeout.java and MaxRetries.java. In fact, I discover this bug when I am writing it. The new test is much faster because in most cases there is no real KDC and timeout can be very short. It contains 2 @run and each spends a little more than half a minute to run on my laptop.
Thanks Max
