// These return false, rather than throwing a UOE, on remove calls.
    return (unfiltered instanceof SetMultimap)
        ? Collections.<V>emptySet()
        : Collections.<V>emptyList();
  }

  @Override
  public void clear() {
    entries().clear();
  }

  @Override
  public Collection<V> get(@ParametricNullness K key) {

        R invokerRequest = context.invokerRequest;
        if (invokerRequest.coreExtensions().isEmpty()
                || invokerRequest.coreExtensions().get().isEmpty()) {
            return Collections.emptyList();
        }

        List<CoreExtension> extensions = invokerRequest.coreExtensions().get();
        ContainerConfiguration cc = new DefaultContainerConfiguration()

            return null;
        }
        VersionRange cached = CACHE_VERSION.get(version);
        if (cached == null) {
            List<Restriction> restrictions = Collections.emptyList();
            cached = new VersionRange(new DefaultArtifactVersion(version), restrictions);
            CACHE_VERSION.put(version, cached);
        }
        return cached;
    }

    /**

        if (protwordsItemList == null) {
            reload(null);
        }

        if (offset >= protwordsItemList.size() || offset < 0) {
            return new PagingList<>(Collections.<ProtwordsItem> emptyList(), offset, size, protwordsItemList.size());
        }

        int toIndex = offset + size;
        if (toIndex > protwordsItemList.size()) {
            toIndex = protwordsItemList.size();
        }

        if (stopwordsItemList == null) {
            reload(null);
        }

        if (offset >= stopwordsItemList.size() || offset < 0) {
            return new PagingList<>(Collections.<StopwordsItem> emptyList(), offset, size, stopwordsItemList.size());
        }

        int toIndex = offset + size;
        if (toIndex > stopwordsItemList.size()) {
            toIndex = stopwordsItemList.size();
        }

    public static List<UpgradedProperty> parse(String path) {
        File file = new File(path);
        if (!file.exists()) {
            return Collections.emptyList();
        }
        try (FileReader reader = new FileReader(file)) {
            List<UpgradedProperty> upgradedProperties = new Gson().fromJson(reader, new TypeToken<List<UpgradedProperty>>() {}.getType());

   * @param backingArray the array to back the list
   * @return a list view of the array
   */
  public static List<Character> asList(char... backingArray) {
    if (backingArray.length == 0) {
      return Collections.emptyList();
    }
    return new CharArrayAsList(backingArray);
  }

  @GwtCompatible
  private static class CharArrayAsList extends AbstractList<Character>
      implements RandomAccess, Serializable {

   * @param backingArray the array to back the list
   * @return a list view of the array
   */
  public static List<Short> asList(short... backingArray) {
    if (backingArray.length == 0) {
      return Collections.emptyList();
    }
    return new ShortArrayAsList(backingArray);
  }

  @GwtCompatible
  private static class ShortArrayAsList extends AbstractList<Short>
      implements RandomAccess, Serializable {

   * @param backingArray the array to back the list
   * @return a list view of the array
   */
  public static List<Short> asList(short... backingArray) {
    if (backingArray.length == 0) {
      return Collections.emptyList();
    }
    return new ShortArrayAsList(backingArray);
  }

  @GwtCompatible
  private static class ShortArrayAsList extends AbstractList<Short>
      implements RandomAccess, Serializable {

        private String type;
        private String coordinateString;
        private String scope;
        private boolean optional;
        private Collection<Exclusion> exclusions = Collections.emptyList();

        DependencyCoordinatesFactoryRequestBuilder() {}

        public DependencyCoordinatesFactoryRequestBuilder session(Session session) {
            this.session = session;
            return this;