for (MockMultiClusterController controller : _controllers) {
if (controller.getInstanceName().equals(firstControllerName)) {
firstController = controller;
}
}
firstController.disconnect();
Thread.sleep(1000);
// 1 cluster status monitor, 1 resource monitor, 5 instances
// Unregister 1+4+1 per-instance resource mbean
// Register 4 per-instance resource mbean