*/
@GwtCompatible
@SuppressWarnings("serial") // uses writeReplace(), not default serialization
final class SingletonImmutableSet<E> extends ImmutableSet<E> {
  // We deliberately avoid caching the asList and hashCode here, to ensure that with
  // compressed oops, a SingletonImmutableSet packs all the way down to the optimal 16 bytes.

  final transient E element;

  SingletonImmutableSet(E element) {

            }
        }
    }

    @Test
    public void test_callbackImplementation() {
        // Test that a callback implementation can be created
        final List<String> events = new ArrayList<>();

        ChatPhaseCallback callback = new ChatPhaseCallback() {
            @Override
            public void onPhaseStart(String phase, String message) {

    }

    // Test configuration for JSON response
    @Test
    public void test_configurationSettings() {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            @Override
            public String getApiJsonResponseExceptionIncluded() {
                return "false";
            }
        });

    /**
     * The logger for this class.
     */
    protected static final Logger logger = Logger.getLogger(ContentCache.class.getName());

    /**
     * A byte array that holds the cached content data.
     */
    private final byte[] data;

    /**
     * The file that is used to cache the content.
     */
    private final File file;

    /**
     * Constructs a ContentCache with the given byte array data.

   * Thus each map generated by this builder will be a superset of any map generated before it.
   *
   * @since 13.0
   */
  public static final class Builder<B> {
    private final ImmutableMap.Builder<TypeToken<? extends B>, B> mapBuilder =
        ImmutableMap.builder();

    private Builder() {}

    /**

    private final FileSystemOperations fileSystemOperations;
    private final int compatibleVersion;
    private final DirectoryProperty sourceDirectory;
    private final DirectoryProperty outputDirectory;
    private final PatternFilterable testPatternSet;
    private final Factory<PatternSet> patternSetFactory;
    private final List<RestTestTransform<?>> transformations = new ArrayList<>();

 * (except `hashCode` and `equals`) if the provided `Supplier` returns false.
 */
final class InvalidatableSet<E> extends ForwardingSet<E> {
  private final Supplier<Boolean> validator;
  private final Set<E> delegate;
  private final Supplier<String> errorMessage;

  static <E> InvalidatableSet<E> of(
      Set<E> delegate, Supplier<Boolean> validator, Supplier<String> errorMessage) {

     * @see FileOutputStream#FileOutputStream(File)
     */
    public static FileOutputStream create(final File file) {
        assertArgumentNotNull("file", file);

        try {
            return new FileOutputStream(file);
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        }
    }

    /**
     * Flushes the {@link OutputStream}.
     *

     * Constructs an instance.
     *
     * @param pattern
     *            the date pattern
     */
    public DateConverter(final String pattern) {
        assertArgumentNotEmpty("pattern", pattern);
        this.pattern = pattern;
    }

    @Override
    public Object getAsObject(final String value) {
        if (isEmpty(value)) {
            return null;
        }
        return DateConversionUtil.toDate(value, pattern);

     * @param access the desired access rights
     * @param rid the relative identifier of the alias
     * @param aliasHandle the alias handle to be populated
     */
    public MsrpcSamrOpenAlias(final SamrDomainHandle handle, final int access, final int rid, final SamrAliasHandle aliasHandle) {
        super(handle, access, rid, aliasHandle);
        ptype = 0;
        flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }