private int index = -1;
        private final int maxIndex = keyToIndex().size();

        @Override
        @CheckForNull
        protected Entry<K, V> computeNext() {
          for (index++; index < maxIndex; index++) {
            V value = getValue(index);
            if (value != null) {
              return immutableEntry(getKey(index), value);
            }
          }

    /**
     * インデックスで指定された位置のエントリを返します。
     *
     * @param index
     *            インデックス
     * @return エントリ
     */
    public Entry getEntry(final int index) {
        assertIndex(0 <= index && index < size, "Index: " + index + ", Size: " + size);
        Entry e = header;
        if (index < size / 2) {
            for (int i = 0; i <= index; i++) {
                e = e.next;
            }
        } else {

    }

    /**
     * Gets the one-based index of the line containing the error.
     *
     * @return The one-based index of the line containing the error or a non-positive value if unknown.
     */
    public int getLineNumber() {
        return lineNumber;
    }

    /**
     * Gets the one-based index of the column containing the error.
     *

    }

    /**
     * Gets the one-based index of the line containing the error.
     *
     * @return The one-based index of the line containing the error or a non-positive value if unknown.
     */
    public int getLineNumber() {
        return lineNumber;
    }

    /**
     * Gets the one-based index of the column containing the error.
     *

        return client.admin();
    }

    @Override
    public ActionFuture<IndexResponse> index(final IndexRequest request) {
        return client.index(request);
    }

    @Override
    public void index(final IndexRequest request, final ActionListener<IndexResponse> listener) {
        client.index(request, listener);
    }

    @Override
    public IndexRequestBuilder prepareIndex() {

    this.offset = offset;
    this.length = length;
  }

  private int getCount(int index) {
    return (int) (cumulativeCounts[offset + index + 1] - cumulativeCounts[offset + index]);
  }

  @Override
  Entry<E> getEntry(int index) {
    return Multisets.immutableEntry(elementSet.asList().get(index), getCount(index));
  }

  @Override
  @CheckForNull
  public Entry<E> firstEntry() {

			for index, e := range etags {
				if partsMetadata[index].IsValid() && e == etag {
					onlineDisks[index] = disks[index]
				} else {
					onlineDisks[index] = nil
				}
			}
			return onlineDisks, modTime, etag
		}
	}

	// Create a new online disks slice, which have common uuid.
	for index, t := range modTimes {

        try {
            update(macSigningKey, 0, macSigningKey.length);
            int index = offset + ServerMessageBlock.SIGNATURE_OFFSET;
            for (int i = 0; i < 8; i++) data[index + i] = 0;
            ServerMessageBlock.writeInt4(signSequence, data, index);
            update(data, offset, length);
            System.arraycopy(digest(), 0, data, index, 8);
            if (bypass) {
                bypass = false;

        @Override
        public E get(final int index) {
            return parent.get(index);
        }

        @Override
        public E set(final int index, final E element) {
            return parent.set(index, element);
        }

        @Override
        public void add(final int index, final E element) {
            parent.add(index, element);
        }

        @Override

import org.opensearch.core.action.ActionListener;
import org.opensearch.core.common.Strings;
import org.opensearch.index.query.BoolQueryBuilder;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.index.query.functionscore.FunctionScoreQueryBuilder;
import org.opensearch.index.query.functionscore.ScoreFunctionBuilders;
import org.opensearch.search.SearchHit;