private static <K extends @Nullable Object, V extends @Nullable Object> Entry<K, V> entry(
      K key, V value) {
    return new AbstractMapEntry<K, V>() {
      @Override
      public K getKey() {
        return key;
      }

      @Override
      public V getValue() {
        return value;
      }
    };
  }

  private static <K extends @Nullable Object, V extends @Nullable Object> Entry<K, V> control(

  }

  @Override
  public boolean contains(@Nullable Object obj) {
    if (!(obj instanceof EndpointPair)) {
      return false;
    }
    EndpointPair<?> endpointPair = (EndpointPair<?>) obj;

    if (graph.isDirected() != endpointPair.isOrdered()) {
      return false;
    }

    if (graph.isDirected()) {
      Object source = endpointPair.source();
      Object target = endpointPair.target();

        "components": {
            "schemas": {
                "ValidationError": {
                    "title": "ValidationError",
                    "required": ["loc", "msg", "type"],
                    "type": "object",
                    "properties": {
                        "loc": {
                            "title": "Location",
                            "type": "array",
                            "items": {

     */
    public static Map<String, Object> getProperties(final Annotation annotation) {
        assertArgumentNotNull("annotation", annotation);

        final Map<String, Object> map = newHashMap();
        final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(annotation.annotationType());
        for (final String name : beanDesc.getMethodNames()) {
            final Object v = getProperty(beanDesc, annotation, name);

                            "title": "Detail",
                            "type": "array",
                        },
                    },
                    "title": "HTTPValidationError",
                    "type": "object",
                },
                "Item": {
                    "properties": {
                        "name": {
                            "title": "Name",
                            "type": "string",

    private static final ConcurrentMap<String, Object> EXPRESSION_CACHE = new ConcurrentHashMap<>();

    protected Object fromExpression(
            final PlexusConfiguration configuration, final ExpressionEvaluator evaluator, final Class<?> type)
            throws ComponentConfigurationException {
        String value = configuration.getValue();
        try {
            Object result = null;

     * @return The updated source map.
     */
    public Map<String, Object> getUpdatedSource(final Map<String, Object> existingSource) {
        final Map<String, Object> map = new HashMap<>();
        map.put(FieldNames.TEXT, text);

        for (int i = 0; i < readings.length; i++) {
            final Object readingObj = existingSource.get(FieldNames.READING_PREFIX + i);
            if (readingObj instanceof List) {

   */
  protected NavigableSet<K> standardDescendingKeySet() {
    return descendingMap().navigableKeySet();
  }

  /**
   * A sensible definition of {@link #subMap(Object, Object)} in terms of {@link #subMap(Object,
   * boolean, Object, boolean)}. If you override {@code subMap(K, boolean, K, boolean)}, you may
   * wish to override {@code subMap} to forward to this implementation.
   */
  @Override

   */
  protected NavigableSet<K> standardDescendingKeySet() {
    return descendingMap().navigableKeySet();
  }

  /**
   * A sensible definition of {@link #subMap(Object, Object)} in terms of {@link #subMap(Object,
   * boolean, Object, boolean)}. If you override {@code subMap(K, boolean, K, boolean)}, you may
   * wish to override {@code subMap} to forward to this implementation.
   */
  @Override

 *
 * @author Harry Heymann
 * @since 2.0
 */
@GwtCompatible
@FunctionalInterface
public interface Supplier<T extends @Nullable Object> extends java.util.function.Supplier<T> {
  /**
   * Retrieves an instance of the appropriate type. The returned object may or may not be a new
   * instance, depending on the implementation.
   *
   * @return an instance of the appropriate type
   */
  @Override