*
     * @return the upper limit on the number of entries
     */
    public int getLimitSize() {
        return limitSize;
    }

    @Override
    protected boolean removeEldestEntry(final Map.Entry<K, V> entry) {
        return size() > limitSize;
    }

@GwtIncompatible // not worth using in GWT for now
final class CompactLinkedHashMap<K extends @Nullable Object, V extends @Nullable Object>
    extends CompactHashMap<K, V> {
  // TODO(lowasser): implement removeEldestEntry so this can be used as a drop-in replacement

  /** Creates an empty {@code CompactLinkedHashMap} instance. */
  public static <K extends @Nullable Object, V extends @Nullable Object>