extends ForwardingMap<Class<? extends @NonNull B>, B>
    implements ClassToInstanceMap<B>, Serializable {

  private static final ImmutableClassToInstanceMap<Object> EMPTY =
      new ImmutableClassToInstanceMap<>(ImmutableMap.<Class<?>, Object>of());

  /**
   * Returns an empty {@code ImmutableClassToInstanceMap}.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   *
   * @since 19.0
   */

    getMultiset().entrySet().clear();
    assertTrue("multiset not empty after entrySet().clear()", getMultiset().isEmpty());
  }

  @CollectionSize.Require(ONE)
  @CollectionFeature.Require(SUPPORTS_ITERATOR_REMOVE)
  public void testEntrySet_iteratorRemovePropagates() {
    Iterator<Multiset.Entry<E>> iterator = getMultiset().entrySet().iterator();
    assertTrue(

            if (id == ProtwordsItem.getId()) {
                return OptionalEntity.of(ProtwordsItem);
            }
        }
        return OptionalEntity.empty();
    }

    @Override
    public synchronized PagingList<ProtwordsItem> selectList(final int offset, final int size) {
        if (protwordsItemList == null) {
            reload(null);
        }

            if (id == StopwordsItem.getId()) {
                return OptionalEntity.of(StopwordsItem);
            }
        }
        return OptionalEntity.empty();
    }

    @Override
    public synchronized PagingList<StopwordsItem> selectList(final int offset, final int size) {
        if (stopwordsItemList == null) {
            reload(null);
        }

var errPathNotFound = StorageErr("path not found")

// errVolumeNotFound - cannot find the volume.
var errVolumeNotFound = StorageErr("volume not found")

// errVolumeNotEmpty - volume not empty.
var errVolumeNotEmpty = StorageErr("volume is not empty")

// errVolumeAccessDenied - cannot access volume, insufficient permissions.
var errVolumeAccessDenied = StorageErr("volume access denied")

	for _, key := range keys {
		err := store.Del(key)
		if err != nil {
			t.Fatal(err)
		}
	}
	// Re-list
	keys = store.List()
	if len(keys) > 0 || err != nil {
		t.Fatalf("Expected List() to return empty list and no error, got %v err: %v", keys, err)
	}
}

func TestMultiplePutGets(t *testing.T) {
	defer func() {
		if err := tearDownQueueStore(); err != nil {
			t.Fatalf("Failed to tear down store; %v", err)

		secretKey  string
		// Sent body
		body []byte
		// Expected response
		expectedRespStatus int
		lifecycleResponse  []byte
		errorResponse      APIErrorResponse
		shouldPass         bool
	}{
		// GET empty credentials
		{
			method: http.MethodGet, bucketName: bucketName,
			accessKey:          "",
			secretKey:          "",
			expectedRespStatus: http.StatusForbidden,
			lifecycleResponse:  []byte(""),

    }

    protected String getOicScope() {
        return ComponentUtil.getSystemProperties().getProperty(OIC_SCOPE, StringUtil.EMPTY);
    }

    protected String getOicClientId() {
        return ComponentUtil.getSystemProperties().getProperty(OIC_CLIENT_ID, StringUtil.EMPTY);
    }

    protected String getOicAuthServerUrl() {

    checkPositionIndex(n, entryArray.length);
    if (n == 0) {
      @SuppressWarnings("unchecked") // it has no entries so the type variables don't matter
      ImmutableMap<K, V> empty = (ImmutableMap<K, V>) EMPTY;
      return empty;
    }
    try {
      return fromEntryArrayCheckingBucketOverflow(n, entryArray, throwIfDuplicateKeys);
    } catch (BucketOverflowException e) {

                    }
                    String virtualHost = keyMatch.getVirtualHost();
                    if (StringUtil.isBlank(virtualHost)) {
                        virtualHost = StringUtil.EMPTY;
                    }
                    Map<String, List<Tuple3<String, QueryBuilder, ScoreFunctionBuilder<?>>>> queryMap = keyMatchQueryMap.get(virtualHost);
                    if (queryMap == null) {