// exist.
		gi = newGroupInfo(members)
	} else {
		gi.Members = set.CreateStringSet(append(gi.Members, members...)...).ToSlice()
		gi.UpdatedAt = UTCNow()
	}

	if err := store.saveGroupInfo(ctx, group, gi); err != nil {
		return updatedAt, err
	}

	cache.iamGroupsMap[group] = gi

	// update user-group membership map
	for _, member := range members {
		gset := cache.iamUserGroupMemberships[member]

		return
	}

	// Reject if the group add and remove are temporary credentials, or root credential.
	for _, member := range updReq.Members {
		ok, _, err := globalIAMSys.IsTempUser(member)
		if err != nil && err != errNoSuchUser {
			writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
			return
		}
		if ok {

func (sys *IAMSys) AddUsersToGroup(ctx context.Context, group string, members []string) (updatedAt time.Time, err error) {
	if !sys.Initialized() {
		return updatedAt, errServerNotInitialized
	}

	if auth.ContainsReservedChars(group) {
		return updatedAt, errGroupNameContainsReservedChars
	}

	updatedAt, err = sys.store.AddUsersToGroup(ctx, group, members)
	if err != nil {
		return updatedAt, err
	}

     * resource is a normal disk file directory,
     * <li>all available NetBIOS workgroups or domains if this resource is
     * the top level URL <code>smb://</code>,
     * <li>all servers registered as members of a NetBIOS workgroup if this
     * resource refers to a workgroup in a <code>smb://workgroup/</code> URL,
     * <li>all browseable shares of a server including printers, IPC

	// yet set any policy
	uClient := s.getUserClient(c, accessKey, secretKey, "")
	c.mustNotListObjects(ctx, uClient, bucket)

	err = s.adm.UpdateGroupMembers(ctx, madmin.GroupAddRemove{
		Group:   "test-group",
		Members: []string{accessKey},
	})
	if err != nil {
		c.Fatalf("unable to add user to group: %v", err)
	}

	_, err = s.adm.AttachPolicy(ctx, madmin.PolicyAssociationReq{
		Policies: []string{policy},

    // Serialization invokes writeObject only when it's private.
    // The SynchronizedObject subclasses don't need a writeObject method since
    // they don't contain any non-transient member variables, while the
    // following writeObject() handles the SynchronizedObject members.

    @GwtIncompatible // java.io.ObjectOutputStream
    @J2ktIncompatible
    private void writeObject(ObjectOutputStream stream) throws IOException {

    // Serialization invokes writeObject only when it's private.
    // The SynchronizedObject subclasses don't need a writeObject method since
    // they don't contain any non-transient member variables, while the
    // following writeObject() handles the SynchronizedObject members.

    @GwtIncompatible // java.io.ObjectOutputStream
    @J2ktIncompatible
    private void writeObject(ObjectOutputStream stream) throws IOException {

	}

	if err = globalIAMSys.LoadUser(context.Background(), objAPI, accessKey, userType); err != nil {
		return np, grid.NewRemoteErr(err)
	}

	return
}

// LoadGroupHandler - reloads group along with members list.
func (s *peerRESTServer) LoadGroupHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
	objAPI := newObjectLayerFn()
	if objAPI == nil {
		return np, grid.NewRemoteErr(errServerNotInitialized)
	}

    snapshot of the `OkHttpClient` instance to defend against racy configuration
    changes. In 3.x, `OkHttpClient` is now stateless and has a builder. Note
    that this class is not strictly immutable as it has stateful members like
    the connection pool and cache.

 *  **Get and Set prefixes are now avoided.** With ubiquitous builders
    throughout OkHttp these accessor prefixes aren't necessary. Previously

 * com.google.common.net.InternetDomainName}.</b>
 *
 * <p>A generated static class containing public members which provide domain name patterns used in
 * determining whether a given domain name is an effective top-level domain (public suffix).
 *
 * <p>Because this class is used in GWT, the data members are stored in a space-efficient manner.
 * See {@link TrieParser}.
 *
 * @since 16.0
 */
@GwtCompatible
@Beta