MulticastSocket.getOption(StandardSocketOption.IP_MULTICAST_LOOP) now returns true if loopback mode is enabled, and MulticastSocket.setOption(StandardSocketOption.IP_MULTICAST_LOOP, true) enables loopback mode. No other behavioral changes.
Reviewed-by: alanb, chegar
DatagramSocket had a setBroadcast and getBroadcast setter/getter pair but curiously didn't report SO_BROADCAST as a supported option. Note: the source code changes were accidentally pushed with 8234103 so this changeset only has the test changes. The reviewers listed below had already reviewed the full (source+test) changes.
Reviewed-by: alanb, vtewari, chegar
Replaces binding to wildacard with alternative less susceptible to intermittent failure in some intermittently failing tests.
Reviewed-by: chegar, msheppar
