*   <li>{@link #getQueryWordsNum()}: Returns the number of query words in the suggestion index.</li>
 * </ul>
 *
 * <p>Protected Methods:
 * <ul>
 *   <li>{@link #createDefaultIndexer()}: Creates a default SuggestIndexer instance.</li>
 * </ul>
 *
 * <p>Private Methods:
 * <ul>
 *   <li>{@link #getNum(QueryBuilder)}: Returns the number of words matching the given query.</li>

 * <ul>
 *   <li>{@link #defaultSettings()}</li>
 *   <li>{@link #defaultArraySettings()}</li>
 * </ul>
 *
 * <p>Index settings can be loaded from a JSON file using:</p>
 * <ul>
 *   <li>{@link #loadIndexSettings()}</li>
 * </ul>
 *
 * <p>A builder for SuggestSettings can be obtained using:</p>
 * <ul>
 *   <li>{@link #builder()}</li>
 * </ul>
 *
 * @see Client
 * @see GetResponse

   * </ul>
   *
   * <p>Note that {@code StandardSystemProperty} does not provide constants for more recently added
   * properties, including:
   *
   * <ul>
   *   <li>{@code java.vendor.version} (added in Java 11, listed as optional as of Java 13)
   *   <li>{@code jdk.module.*} (added in Java 9, optional)
   * </ul>
   */
  public @Nullable String value() {

 *
 * <p>Valid:
 *
 * <ul>
 *   <li>Live: valid key/value are set
 *   <li>Loading: loading is pending
 * </ul>
 *
 * <p>Invalid:
 *
 * <ul>
 *   <li>Expired: time expired (key/value may still be set)
 *   <li>Collected: key/value was partially collected, but not yet cleaned up
 *   <li>Unset: marked as unset, awaiting cleanup or reuse
 * </ul>
 */
@GwtIncompatible
@J2ktIncompatible

							<p><la:message key="labels.menu_maintenance" /></p>
						</a></li></c:if>

				</ul></li></c:if>

			<c:if test="${fe:fileExists('/WEB-INF/view/common/admin/sidebar_extra.jsp')}">
				<c:import url="/WEB-INF/view/common/admin/sidebar_extra.jsp" />
			</c:if>
		</ul>
		</nav>
	</div>

 * map from keys to <i>nonempty</i> collections of values:
 *
 * <ul>
 *   <li>a → 1, 2
 *   <li>b → 3
 * </ul>
 *
 * ... or as a single "flattened" collection of key-value pairs:
 *
 * <ul>
 *   <li>a → 1
 *   <li>a → 2
 *   <li>b → 3
 * </ul>
 *
 * <p><b>Important:</b> although the first interpretation resembles how most multimaps are

   * rounding mode, if possible.
   *
   * @throws ArithmeticException if
   *     <ul>
   *       <li>{@code x} is infinite or NaN
   *       <li>{@code x} is not a mathematical integer and {@code mode} is {@link
   *           RoundingMode#UNNECESSARY}
   *     </ul>
   */
  // #roundIntermediate, java.lang.Math.getExponent, com.google.common.math.DoubleUtils
  @GwtIncompatible

   *
   * <ul>
   *   <li>{@code view.equals(view)} evaluates to {@code true} (but any other {@code equals(...)}
   *       expression involving {@code view} will throw)
   *   <li>{@code hashCode()} does not throw
   *   <li>if {@code node} is re-added to the graph after having been removed, {@code view}'s
   *       behavior is undefined
   * </ul>
   *

 *
 * <p>The DataIndexHelper supports:</p>
 * <ul>
 *   <li>Concurrent crawling of multiple data configurations</li>
 *   <li>Thread pool management for crawler execution</li>
 *   <li>Session-based crawling with cleanup operations</li>
 *   <li>Old document deletion after successful crawling</li>
 *   <li>Crawling execution monitoring and timing</li>
 * </ul>
 */
public class DataIndexHelper {

        <form action="" onsubmit="sendMessage(event)">
            <input type="text" id="messageText" autocomplete="off"/>
            <button>Send</button>
        </form>
        <ul id='messages'>
        </ul>
        <script>
            var ws = new WebSocket("ws://localhost:8000/ws");
            ws.onmessage = function(event) {
                var messages = document.getElementById('messages')