if (top.remainingSuccessors == null) {
        NodeVisitState state = visitedNodes.get(node);
        if (state == NodeVisitState.COMPLETE) {
          stack.removeLast();
          continue;
        }
        if (state == NodeVisitState.PENDING) {
          return true;
        }

        visitedNodes.put(node, NodeVisitState.PENDING);

      if (top.remainingSuccessors == null) {
        NodeVisitState state = visitedNodes.get(node);
        if (state == NodeVisitState.COMPLETE) {
          stack.removeLast();
          continue;
        }
        if (state == NodeVisitState.PENDING) {
          return true;
        }

        visitedNodes.put(node, NodeVisitState.PENDING);

 *    Messages in either direction are enqueued for immediate transmission.
 *
 *  * **Closing:** one of the peers on the web socket has initiated a graceful shutdown. The web
 *    socket will continue to transmit already-enqueued messages but will refuse to enqueue new
 *    ones.
 *
 *  * **Closed:** the web socket has transmitted all of its messages and has received all messages
 *    from the peer.
 *

            // but we can verify the method signature and basic functionality
            SearchEngineUtil.scroll("test_index", hit -> {
                callbackCount.incrementAndGet();
                return true; // Continue processing
            });
        } catch (Exception e) {
            // Expected in test environment without proper SearchEngineClient

      eventSequence.forEach loop@{
        when (e.closes(it)) {
          null -> return // no open event
          true -> return // found open event
          false -> return@loop // this is not the open event so continue
        }
      }
      fail<Any>("event $e without matching start event")
    }
  }

  override fun proxySelectStart(
    call: Call,
    url: HttpUrl,

  }

  /**
   * Drains the queue as {@linkplain #drain(BlockingQueue, Collection, int, Duration)}, but with a
   * different behavior in case it is interrupted while waiting. In that case, the operation will
   * continue as usual, and in the end the thread's interruption status will be set (no {@code
   * InterruptedException} is thrown).
   *
   * @param q the blocking queue to be drained

        .build(),
    )
    val url = server.url("/").toUrl()
    val connection = url.openConnection() as HttpURLConnection
    connection.doOutput = true
    connection.setRequestProperty("Expect", "100-Continue")
    connection.outputStream.write("request".toByteArray(UTF_8))
    val inputStream = connection.inputStream
    val reader = BufferedReader(InputStreamReader(inputStream, UTF_8))

            while ((list = csvReader.readValues()) != null) {
                String targetWord = getValue(list, 0);
                if (StringUtil.isBlank(targetWord)) {
                    // skip
                    continue;
                }
                try {
                    boolean isDelete = false;
                    if (targetWord.startsWith(DELETE_PREFIX)) {
                        isDelete = true;

                if (line.length() == 0 || line.charAt(0) == '#') {
                    if (updater != null) {
                        updater.write(line);
                    }
                    continue; // ignore empty lines and comments
                }

                final String inputStrings = line;
                final String input = unescape(inputStrings);

                if (input.length() > 0) {

                    if (StringUtil.isNotBlank(responseData.getRedirectLocation())) {
                        u = responseData.getRedirectLocation();
                        continue;
                    }
                    if (StringUtil.isBlank(responseData.getUrl())) {
                        throw new ThumbnailGenerationException(