final String label = locale.getDisplayName(displayLocale);
                            final Map<String, String> map = new HashMap<>(2);
                            map.put(Constants.ITEM_LABEL, label);
                            map.put(Constants.ITEM_VALUE, lang);
                            langItems.add(map);
                        }
                        return langItems;
                    }
                });

  }

  @LazyInit private transient @Nullable ColumnMap columnMap;

  @Override
  public Map<C, Map<R, @Nullable V>> columnMap() {
    ColumnMap map = columnMap;
    return (map == null) ? columnMap = new ColumnMap() : map;
  }

  @WeakOuter
  private final class ColumnMap extends ArrayMap<C, Map<R, @Nullable V>> {
    private ColumnMap() {
      super(columnKeyToIndex);
    }

    @Override

      Map<K, V> newHashMapWithExpectedSize(int expectedSize) {
    return Maps.newHashMapWithExpectedSize(expectedSize);
  }

  /**
   * Returns the platform preferred implementation of an insertion ordered map based on a hash
   * table.
   */
  static <K extends @Nullable Object, V extends @Nullable Object>
      Map<K, V> newLinkedHashMapWithExpectedSize(int expectedSize) {

  }

  public SafeTreeMap(Comparator<? super K> comparator) {
    this(new TreeMap<K, V>(comparator));
  }

  public SafeTreeMap(Map<? extends K, ? extends V> map) {
    this(new TreeMap<K, V>(map));
  }

  public SafeTreeMap(SortedMap<K, ? extends V> map) {
    this(new TreeMap<K, V>(map));
  }

  private SafeTreeMap(NavigableMap<K, V> delegate) {
    this.delegate = delegate;
    if (delegate == null) {

        }
    }

    private Map<String, Object> getContextMap() {
        HashMap<String, Object> map = mapPool.poll();
        if (map == null) {
            map = new HashMap<>();
        } else {
            map.clear();
        }
        return map;
    }

    private void returnContextMap(Map<String, Object> map) {
        if (map instanceof HashMap && map.size() < 20) { // Avoid keeping very large maps

     * @return A list of stopwords.
     */
    public List<StopwordsItem> getStopwordsList(final String dictId, final StopwordsPager stopwordsPager) {
        return getStopwordsFile(dictId).map(file -> {
            final int pageSize = stopwordsPager.getPageSize();
            final PagingList<StopwordsItem> stopwordsList =
                    file.selectList((stopwordsPager.getCurrentPageNumber() - 1) * pageSize, pageSize);

     * @return A list of synonyms.
     */
    public List<SynonymItem> getSynonymList(final String dictId, final SynonymPager synonymPager) {
        return getSynonymFile(dictId).map(file -> {
            final int pageSize = synonymPager.getPageSize();
            final PagingList<SynonymItem> synonymList = file.selectList((synonymPager.getCurrentPageNumber() - 1) * pageSize, pageSize);

    /**
     * Constructs an instance.
     *
     * @param key
     *            Key of the map
     * @param map
     *            Map
     */
    public IllegalKeyOfBeanMapException(final Object key, final Map<?, ?> map) {
        super("key", "ECL0016", asArray(key, map));
    }

   *     key
   * @throws NullPointerException if any key or value in {@code map} is null
   */
  public static <K, V> ImmutableBiMap<K, V> copyOf(Map<? extends K, ? extends V> map) {
    if (map instanceof ImmutableBiMap) {
      @SuppressWarnings("unchecked") // safe since map is not writable
      ImmutableBiMap<K, V> bimap = (ImmutableBiMap<K, V>) map;
      // TODO(lowasser): if we need to make a copy of a BiMap because the

     *
     * @param dataMap the data map to populate
     * @param responseData the response data from crawling
     * @param document the parsed HTML document
     * @return the processed data map
     */
    protected Map<String, Object> processAdditionalData(final Map<String, Object> dataMap, final ResponseData responseData,
            final Document document) {