}

  @CanIgnoreReturnValue
  final @Nullable V put(K key, V value) {
    checkNotNull(key);
    checkNotNull(value);
    clearCache();
    return backingMap.put(key, value);
  }

  @CanIgnoreReturnValue
  final @Nullable V remove(Object key) {
    checkNotNull(key);
    clearCache();
    return backingMap.remove(key);
  }

  final void clear() {
    clearCache();
    backingMap.clear();

    private static final long serialVersionUID = 1L;

    /**
     * Default constructor.
     */
    public KeyMatchPager() {
        // Default constructor
    }

    /** The default page size. */
    public static final int DEFAULT_PAGE_SIZE = 20;

    /** The default current page number. */
    public static final int DEFAULT_CURRENT_PAGE_NUMBER = 1;

   * directly against {@code equals()} rather than through the {@code Equivalence}.
   */
  private final Equivalence<? super T> equivalence;

  private final String relationshipName;
  private final String hashName;
  private final ItemReporter itemReporter;
  private final List<ImmutableList<T>> groups = new ArrayList<>();

  RelationshipTester(
      Equivalence<? super T> equivalence,

  }

  private static final class PostOrderNode<T> {
    final T root;
    final Iterator<T> childIterator;

    PostOrderNode(T root, Iterator<T> childIterator) {
      this.root = checkNotNull(root);
      this.childIterator = checkNotNull(childIterator);
    }
  }

  private final class PostOrderIterator extends AbstractIterator<T> {
    private final ArrayDeque<PostOrderNode<T>> stack;

public class IterationMarkCharFilterFactory extends AbstractCharFilterFactory {

    public IterationMarkCharFilterFactory(final IndexSettings indexSettings, final Environment env, final String name,
            final Settings settings) {
        super(indexSettings, name);
    }

    @Override
    public Reader create(final Reader tokenStream) {
        return new IterationMarkCharFilter(tokenStream);
    }

    public void functionScore(OperatorCall<WebConfigCQ> queryLambda, ScoreFunctionCall<ScoreFunctionCreator<WebConfigCQ>> functionsLambda,
            final ConditionOptionCall<FunctionScoreQueryBuilder> opLambda) {
        WebConfigCQ cq = new WebConfigCQ();
        queryLambda.callback(cq);
        final Collection<FilterFunctionBuilder> list = new ArrayList<>();
        if (functionsLambda != null) {

     *
     * @param origin the origin pattern (can be "*" for wildcard)
     * @param handler the CORS handler to associate with the origin
     */
    public void add(final String origin, final CorsHandler handler) {
        if (logger.isDebugEnabled()) {
            logger.debug("Loaded {}", origin);
        }
        handerMap.put(origin, handler);
    }

    /**

    public NormalizerChain() {
        // nothing
    }

    List<Normalizer> normalizers = new ArrayList<>();

    @Override
    public String normalize(final String text, final String field, final String... langs) {
        String tmp = text;
        for (final Normalizer normalizer : normalizers) {
            tmp = normalizer.normalize(tmp, field, langs);
        }
        return tmp;
    }

    /**

        super();
    }

    @Override
    protected Client createClient() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String[] hosts =
                split(address, ",").get(stream -> stream.map(String::trim).filter(StringUtil::isNotEmpty).toArray(n -> new String[n]));
        final Builder builder = Settings.builder()
                .putList("http.hosts", hosts)

 * be run against that class.
 *
 * @author George van den Driessche
 */
@GwtCompatible
public final class TesterRequirements {
  private final Set<Feature<?>> presentFeatures;
  private final Set<Feature<?>> absentFeatures;

  public TesterRequirements(Set<Feature<?>> presentFeatures, Set<Feature<?>> absentFeatures) {
    this.presentFeatures = copyToSet(presentFeatures);