// other threads waiting on take() will also return.
    if (result == DEAD_LETTER) responseQueue.add(DEAD_LETTER)

    return result
  }

  public override fun peek(): MockResponse = responseQueue.peek() ?: failFastResponse ?: super.peek()

  public open fun enqueue(response: MockResponse) {
    responseQueue.add(response)
  }

  public open fun clear() {
    responseQueue.clear()
  }

      BigInteger plusHalfSquared = result.pow(2).add(result).shiftLeft(2).add(ONE);
      BigInteger x4 = x.shiftLeft(2);
      // sqrt(x) < result + 0.5, so 4 * x < (result + 0.5)^2 * 4
      // (result + 0.5)^2 * 4 = (result^2 + result)*4 + 1
      assertTrue(x4.compareTo(plusHalfSquared) < 0);
      BigInteger minusHalfSquared = result.pow(2).subtract(result).shiftLeft(2).add(ONE);

  }

  @Throws(UnknownHostException::class)
  private fun lookupHttps(hostname: String): List<InetAddress> {
    val networkRequests =
      buildList {
        add(client.newCall(buildRequest(hostname, DnsRecordCodec.TYPE_A)))

        if (includeIPv6) {
          add(client.newCall(buildRequest(hostname, DnsRecordCodec.TYPE_AAAA)))
        }
      }

    val failures = ArrayList<Exception>(2)

                    list.add(IntItem.ZERO);
                } else {
                    list.add(parseItem(isCombination, isDigit, version.substring(startIndex, i)));
                }
                isCombination = false;
                startIndex = i + 1;
            } else if (c == '-') {
                if (i == startIndex) {
                    list.add(IntItem.ZERO);
                } else {

        for (final String label : bugReportLabels) {
            itemList.add(createPropItem(label));
        }

        final DynamicProperties systemProperties = ComponentUtil.getSystemProperties();
        for (final Map.Entry<Object, Object> entry : systemProperties.entrySet()) {
            if (isBugReportTarget(entry.getKey())) {
                itemList.add(createItem(entry.getKey(), entry.getValue()));
            }
        }

    builder.add(Range.<Integer>all());

    // Add one-ended ranges
    for (int i = MIN_BOUND; i <= MAX_BOUND; i++) {
      for (BoundType type : BoundType.values()) {
        builder.add(Range.upTo(i, type));
        builder.add(Range.downTo(i, type));
      }
    }

    // Add two-ended ranges
    for (int i = MIN_BOUND; i <= MAX_BOUND; i++) {

        final List<String> list = new ArrayList<>(fields.length + 10);
        stream(fields).of(stream -> stream.forEach(list::add));
        split(getQueryAdditionalResponseFields(), ",")
                .of(stream -> stream.filter(StringUtil::isNotBlank).map(String::trim).forEach(list::add));
        return list.toArray(new String[list.size()]);
    }

    String getQueryAdditionalScrollResponseFields();

					ModTime:   baseTime.Add(60 * time.Minute).UnixNano(),
					Signature: [4]byte{2, 1, 1, 1},
					Type:      ObjectType,
					Flags:     0,
				}},
				{header: xlMetaV2VersionHeader{
					VersionID: [16]byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
					ModTime:   baseTime.Add(30 * time.Minute).UnixNano(),
					Signature: [4]byte{1, 1, 1, 1},

      List<E> targetElements = new ArrayList<>();
      Iterator<E> iterator = newTargetIterator();
      for (int j = 0; j < i; j++) {
        targetElements.add(iterator.next());
      }
      iterator.forEachRemaining(targetElements::add);
      if (knownOrder == KnownOrder.KNOWN_ORDER) {
        assertEquals(expectedElements, targetElements);
      } else {

     *
     * @param queryContext the query context to add boost functions to
     */
    protected void buildBoostQuery(final QueryContext queryContext) {
        queryContext.addFunctionScore(list -> {
            list.add(new FilterFunctionBuilder(
                    ScoreFunctionBuilders.fieldValueFactorFunction(ComponentUtil.getFessConfig().getIndexFieldBoost())));