// the sleep time has to be longer than the sum of validatorPingPeriod and validatorPingTimeout.
// see remoting-bisocket-service.xml
Thread.sleep(20000);
assertEquals(1, clusterDelegate.getDelegates().length);
TopologyResult topology = clusterDelegate.getTopology();
assertEquals(1, topology.getDelegates().length);
clusterDelegate.closeCallback(false);
}