return (T) invoke(method, null, args);
    }

    /**
     * Returns whether the method is <code>abstract</code>.
     *
     * @param method
     *            The method. Cannot be {@literal null}
     * @return <code>abstract</code> if the method is abstract
     */
    public static boolean isAbstract(final Method method) {
        return Modifier.isAbstract(method.getModifiers());

    return this;
  }

  @Override
  public T or(Supplier<? extends T> supplier) {
    checkNotNull(supplier);
    return reference;
  }

  @Override
  public T orNull() {
    return reference;
  }

  @Override
  public Set<T> asSet() {
    return Collections.singleton(reference);
  }

  @Override
  public <V> Optional<V> transform(Function<? super T, V> function) {
    return new Present<>(

            return parent.toArray();
        }

        public <T> T[] toArray(final T[] a) {
            return parent.toArray(a);
        }

        public boolean add(final E e) {
            return parent.add(e);
        }

        public boolean remove(final Object o) {
            return parent.remove(o);
        }

        public boolean containsAll(final Collection<?> c) {

            return AdminWebconfigAction.class;
        }
        if (user.hasRoles(getActionRoles(AdminFileconfigAction.ROLE))) {
            return AdminFileconfigAction.class;
        }
        if (user.hasRoles(getActionRoles(AdminDataconfigAction.ROLE))) {
            return AdminDataconfigAction.class;
        }
        if (user.hasRoles(getActionRoles(AdminLabeltypeAction.ROLE))) {
            return AdminLabeltypeAction.class;

    return delegate().addAll(index, elements);
  }

  @Override
  @ParametricNullness
  public E get(int index) {
    return delegate().get(index);
  }

  @Override
  public int indexOf(@Nullable Object element) {
    return delegate().indexOf(element);
  }

  @Override
  public int lastIndexOf(@Nullable Object element) {
    return delegate().lastIndexOf(element);
  }

    Iterator<Entry<E>> entryIterator = entrySet().iterator();
    if (!entryIterator.hasNext()) {
      return null;
    }
    Entry<E> entry = entryIterator.next();
    return Multisets.immutableEntry(entry.getElement(), entry.getCount());
  }

  @Override
  public @Nullable Entry<E> lastEntry() {
    return delegate().lastEntry();
  }

  /**
   * A sensible definition of {@link #lastEntry()} in terms of {@code

        return _columnCreatedAt;
    }

    public ColumnInfo columnDocId() {
        return _columnDocId;
    }

    public ColumnInfo columnQueryId() {
        return _columnQueryId;
    }

    public ColumnInfo columnUrl() {
        return _columnUrl;
    }

    public ColumnInfo columnUserInfoId() {
        return _columnUserInfoId;
    }

        @Nullable
        public Path getPath() {
            return path;
        }

        @Override
        @Nonnull
        public InputStream openStream() throws IOException {
            return Files.newInputStream(path);
        }

        @Override
        @Nonnull
        public String getLocation() {
            return location;
        }

        @Override
        @Nullable

    /**
     * Gets the name of the queue index for the crawler.
     *
     * @return the queue index name
     */
    @Override
    public String getQueueIndex() {
        return ComponentUtil.getFessConfig().getIndexDocumentCrawlerIndex() + ".queue";
    }

    /**
     * Gets the name of the data index for the crawler.
     *
     * @return the data index name
     */
    @Override
    public String getDataIndex() {

        }
        return userGroups;
    }

    /**
     * Gets the OpenID Connect user.
     *
     * @return the OpenID Connect user
     */
    public OpenIdUser getUser() {
        return new OpenIdUser(getUserId(), getUserGroups(), getDefaultRolesAsArray());
    }

    /**
     * Gets the default groups as an array.
     *
     * @return the default groups
     */