// operation, we fetch this info from storage, and refresh the cache as well.
func (store *IAMStoreSys) ListGroups(ctx context.Context) (res []string, err error) {
	cache := store.lock()
	defer store.unlock()

	if store.getUsersSysType() == MinIOUsersSysType {
		m := map[string]GroupInfo{}
		err = store.loadGroups(ctx, m)
		if err != nil {
			return
		}
		cache.iamGroupsMap = m

	}

	loadUserCalled := false
	select {
	case <-sys.configLoaded:
	default:
		sys.store.LoadUser(ctx, name)
		loadUserCalled = true
	}

	userInfo, err := sys.store.GetUserInfo(name)
	if err == errNoSuchUser && !loadUserCalled {
		sys.store.LoadUser(ctx, name)
		userInfo, err = sys.store.GetUserInfo(name)
	}
	return userInfo, err
}

MINIO_NOTIFY_AMQP_COMMENT        (sentence)  optionally add a comment to this setting
```

				writeErrorResponse(ctx, w, exportError(ctx, err, iamFile, ""), r.URL)
				return
			}
		case allUsersFile:
			userIdentities := make(map[string]UserIdentity)
			err := globalIAMSys.store.loadUsers(ctx, regUser, userIdentities)
			if err != nil {
				writeErrorResponse(ctx, w, exportError(ctx, err, iamFile, ""), r.URL)
				return
			}
			userAccounts := make(map[string]madmin.AddOrUpdateUserReq)

   * returned by {@code factory}. Those objects should not be manually updated and they should not
   * use soft, weak, or phantom references.
   *
   * @param map place to store the mapping from each key to its corresponding values
   * @param factory supplier of new, empty collections that will each hold all values for a given
   *     key
   * @throws IllegalArgumentException if {@code map} is not empty

    checkNotNull(iterable);
    return new Iterator<T>() {
      Iterator<T> iterator = emptyModifiableIterator();

      @Override
      public boolean hasNext() {
        /*
         * Don't store a new Iterator until we know the user can't remove() the last returned
         * element anymore. Otherwise, when we remove from the old iterator, we may be invalidating

    checkNotNull(iterable);
    return new Iterator<T>() {
      Iterator<T> iterator = emptyModifiableIterator();

      @Override
      public boolean hasNext() {
        /*
         * Don't store a new Iterator until we know the user can't remove() the last returned
         * element anymore. Otherwise, when we remove from the old iterator, we may be invalidating

  repeated string categories = 7;

  // The hash value of the storage version, the version this resource is
  // converted to when written to the data store. Value must be treated
  // as opaque by clients. Only equality comparison on the value is valid.
  // This is an alpha feature and may change or be removed in the future.
  // The field is populated by the apiserver only if the

			if HasSuffix(deletePath, SlashSeparator) {
				return errFileNotFound
			}
			// if we have .DS_Store only on macOS
			if runtime.GOOS == globalMacOSName {
				storeFilePath := pathJoin(deletePath, ".DS_Store")
				_, err := Stat(storeFilePath)
				// .DS_Store exists
				if err == nil {
					// delete first
					Remove(storeFilePath)
					// try again
					Remove(deletePath)

			objectName:     "fooobject",
			objectTags:     "store+forever=false&factory=true",