ServiceManager manager = new ServiceManager(asList(a, b));
    RecordingListener listener = new RecordingListener();
    manager.addListener(listener, directExecutor());
    assertState(manager, Service.State.NEW, a, b);
    assertFalse(manager.isHealthy());
    manager.startAsync().awaitHealthy();
    assertState(manager, Service.State.RUNNING, a, b);
    assertTrue(manager.isHealthy());

Each handler, with optional subroutes can be registered with the manager using 
`Manager.RegisterXHandler(handlerID, handler, subroutes...)`.

A `Handler()` function provides an HTTP handler, which should be hooked up to the appropriate route on the server.

On startup, the manager will start connecting to remotes and also starts listening for incoming connections.

		CheckUser(t, user, users2[idx])
		if users2[idx].Manager == nil {
			t.Fatalf("Failed to load Manager")
		}
		// manager
		CheckUser(t, *user.Manager, *users2[idx].Manager)
		// user pet
		if users2[idx].NamedPet == nil {
			t.Fatalf("Failed to load NamedPet")
		}
		CheckPet(t, *user.NamedPet, *users2[idx].NamedPet)
		// manager pet
		if users2[idx].Manager.NamedPet == nil {
			t.Fatalf("Failed to load NamedPet")

                    }
                ]
            }
        ],
        "policy": {
            "overprovisioningFactor": 140
        }
    },
    {
        "clusterName": "outbound|9402||cert-manager-istio-csr-metrics.cert-manager.svc.cluster.local",
        "endpoints": [
            {
                "locality": {},
                "lbEndpoints": [
                    {
                        "endpoint": {

      loadBalancingWeight: 1
      metadata:
        filterMetadata:
          istio:
            workload: cert-manager-istio-csr;cert-manager;;;Kubernetes
    loadBalancingWeight: 1
    locality: {}
  policy:
    overprovisioningFactor: 140
- clusterName: outbound|443||cert-manager-istio-csr.cert-manager.svc.cluster.local
  endpoints:
  - lbEndpoints:
    - endpoint:
        address:
          socketAddress:

		*GetUser("bulk_5", Config{Account: false, Pets: 0, Toys: 3, Company: true, Manager: false, Team: 1, Languages: 3, Friends: 1}),
		*GetUser("bulk_6", Config{Account: true, Pets: 4, Toys: 3, Company: false, Manager: true, Team: 1, Languages: 3, Friends: 0}),
		*GetUser("bulk_7", Config{Account: true, Pets: 1, Toys: 3, Company: true, Manager: true, Team: 4, Languages: 3, Friends: 1}),

	user.Manager.Name += "new2"
	if err := DB.Session(&gorm.Session{FullSaveAssociations: true}).Select("`Company`").Save(&user).Error; err != nil {
		t.Fatalf("errors happened when update: %v", err)
	}

	var user5 User
	DB.Preload("Company").Preload("Manager").Find(&user5, "id = ?", user.ID)
	if user5.Manager.Name != user4.Manager.Name {
		t.Errorf("should not update user's manager")
	} else {
		user.Manager.Name = user4.Manager.Name
	}

	result.Company = user2.Company
	result.Manager = user2.Manager
	result.Team = user2.Team
	result.Languages = user2.Languages
	result.Friends = user2.Friends

	DB.Select("Name", "Account", "Toys", "Manager", "ManagerID", "Languages").Save(&result)

	var result2 User

 *
 * <pre>{@code
 * class Server {
 *   public static void main(String[] args) {
 *     Set<Service> services = ...;
 *     ServiceManager manager = new ServiceManager(services);
 *     manager.addListener(new Listener() {
 *         public void stopped() {}
 *         public void healthy() {
 *           // Services have been initialized and are healthy, start accepting requests...

 *
 * <pre>{@code
 * class Server {
 *   public static void main(String[] args) {
 *     Set<Service> services = ...;
 *     ServiceManager manager = new ServiceManager(services);
 *     manager.addListener(new Listener() {
 *         public void stopped() {}
 *         public void healthy() {
 *           // Services have been initialized and are healthy, start accepting requests...