}

  private ImmutableSortedMap<K, V> getSubMap(int fromIndex, int toIndex) {
    if (fromIndex == 0 && toIndex == size()) {
      return this;
    } else if (fromIndex == toIndex) {
      return emptyMap(comparator());
    } else {
      return new ImmutableSortedMap<>(
          keySet.getSubSet(fromIndex, toIndex), valueList.subList(fromIndex, toIndex));
    }
  }

  /**

      return target instanceof Integer ? parent.lastIndexOf((Integer) target) : -1;
    }

    @Override
    public List<Integer> subList(int fromIndex, int toIndex) {
      return parent.subArray(fromIndex, toIndex).asList();
    }

    // The default List spliterator is not efficiently splittable
    @Override
    @SuppressWarnings("Java7ApiChecker")
    /*

        }

        public ListIterator<E> listIterator(final int index) {
            return parent.listIterator(index);
        }

        public List<E> subList(final int fromIndex, final int toIndex) {
            return parent.subList(fromIndex, toIndex);
        }

        public RequestOptionCall<BulkRequestBuilder> getCall() {
            return call;
        }

        }

        public ListIterator<E> listIterator(final int index) {
            return parent.listIterator(index);
        }

        public List<E> subList(final int fromIndex, final int toIndex) {
            return parent.subList(fromIndex, toIndex);
        }

        public RequestOptionCall<BulkRequestBuilder> getCall() {
            return call;
        }

      return target instanceof Double ? parent.lastIndexOf((Double) target) : -1;
    }

    @Override
    public List<Double> subList(int fromIndex, int toIndex) {
      return parent.subArray(fromIndex, toIndex).asList();
    }

    // The default List spliterator is not efficiently splittable
    @Override
    @SuppressWarnings("Java7ApiChecker")
    /*

     *            配列
     * @param obj
     *            検索するオブジェクト
     * @param fromIndex
     *            検索を始めるインデックス
     * @return 配列中からオジェクトが最初に見つかったインデックス。見つからなかった場合は{@literal -1}
     */
    public static <T> int indexOf(final T[] array, final T obj, final int fromIndex) {
        if (array != null) {
            for (int i = fromIndex; i < array.length; ++i) {
                final Object o = array[i];

      synchronized (mutex) {
        return delegate().set(index, element);
      }
    }

    @Override
    public List<E> subList(int fromIndex, int toIndex) {
      synchronized (mutex) {
        return list(delegate().subList(fromIndex, toIndex), mutex);
      }
    }

    @Override
    public boolean equals(@CheckForNull Object o) {
      if (o == this) {
        return true;
      }

      synchronized (mutex) {
        delegate().sort(c);
      }
    }

    @Override
    public List<E> subList(int fromIndex, int toIndex) {
      synchronized (mutex) {
        return list(delegate().subList(fromIndex, toIndex), mutex);
      }
    }

    @Override
    public boolean equals(@CheckForNull Object o) {
      if (o == this) {
        return true;
      }

this._items[itemIndex]\n  }\n\n  _triggerSlideEvent(relatedTarget, eventDirectionName) {\n    const targetIndex = this._getItemIndex(relatedTarget)\n    const fromIndex = this._getItemIndex(this._element.querySelector(SELECTOR_ACTIVE_ITEM))\n    const slideEvent = $.Event(EVENT_SLIDE, {\n      relatedTarget,\n      direction: eventDirectionName,\n      from: fromIndex,\n      to: targetIndex\n    })\n\n    $(this._element).trigger(slideEvent)\n\n    return slideEvent\n  }\n\n  _setActiveIndicatorElement(element)...

this._items[itemIndex]\n  }\n\n  _triggerSlideEvent(relatedTarget, eventDirectionName) {\n    const targetIndex = this._getItemIndex(relatedTarget)\n    const fromIndex = this._getItemIndex(this._element.querySelector(Selector.ACTIVE_ITEM))\n    const slideEvent = $.Event(Event.SLIDE, {\n      relatedTarget,\n      direction: eventDirectionName,\n      from: fromIndex,\n      to: targetIndex\n    })\n\n    $(this._element).trigger(slideEvent)\n\n    return slideEvent\n  }\n\n  _setActiveIndicatorElement(element)...