.set(CommonConfigurationKeys.HADOOP_SECURITY_AUTHENTICATION, "kerberos");
UserGroupInformation.setConfiguration(conf);
final Server server = RPC.getServer(TestProtocol.class, new TestImpl(),
ADDRESS, 0, 5, true, conf, sm);
server.start();
final UserGroupInformation current = UserGroupInformation
.createRemoteUser(REAL_USER_NAME);
final InetSocketAddress addr = NetUtils.getConnectAddress(server);