### Standard Test Setup

```java
@BeforeClass
public static void beforeClass() {
    runner = new OpenSearchRunner();
    runner.build(newConfigs().clusterName("TestCluster").numOfNode(1));
    client = runner.client();
}

@Before
public void before() {
    runner.admin().indices().prepareDelete("_all").execute().actionGet();
}

@AfterClass
public static void afterClass() {
    runner.close();

    //                                                                             =======

    public boolean hasAggregations() {
        return aggregationAggregationBuilderList != null && !aggregationAggregationBuilderList.isEmpty();
    }

    public List<AbstractAggregationBuilder<?>> getAggregationBuilderList() {

import org.mortbay.log.Log;

/**
 * @author shinsuke
 *
 */
public class CrawlerWebServer {
    private int port = 8080;

    private File docRoot;

    private Server server;

    private boolean tempDocRoot = false;

    public CrawlerWebServer(final int port) {
        this(port, createDocRoot(3));
        tempDocRoot = true;
    }

    public CrawlerWebServer(final int port, final File docRoot) {

 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *

	public final fun -deprecated_mustRevalidate ()Z
	public final fun -deprecated_noCache ()Z
	public final fun -deprecated_noStore ()Z
	public final fun -deprecated_noTransform ()Z
	public final fun -deprecated_onlyIfCached ()Z
	public final fun -deprecated_sMaxAgeSeconds ()I
	public final fun immutable ()Z
	public final fun isPrivate ()Z
	public final fun isPublic ()Z
	public final fun maxAgeSeconds ()I
	public final fun maxStaleSeconds ()I

     * @param tmpDir the temporary directory to create the file in
     */
    public ContentOutputStream(final int threshold, final File tmpDir) {
        super(threshold, PREFIX, SUFFIX, tmpDir);
    }

    @Override
    public File getFile() {
        done = true;
        return super.getFile();
    }

    /**

    /**
     * Maximum content size.
     */
    protected long maxContentSize = -1;

    /**
     * Creates a new TarExtractor instance.
     */
    public TarExtractor() {
        super();
    }

    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        validateInputStream(in);

        final MimeTypeHelper mimeTypeHelper = getMimeTypeHelper();

 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *

import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;

/**
 * Query command for prefix queries.
 */
public class PrefixQueryCommand extends QueryCommand {

    /**
     * Default constructor.
     */
    public PrefixQueryCommand() {
        super();
    }

    private static final Logger logger = LogManager.getLogger(PrefixQueryCommand.class);

 * instead of a custom implementation, providing better security and performance.
 * The API remains backward compatible with previous versions.
 * </p>
 *
 * @author higa
 */
public abstract class Base64Util {

    /**
     * Do not instantiate.
     */
    protected Base64Util() {
    }

    /**
     * Encodes data in Base64.
     * <p>