override fun clean(
    chain: List<Certificate>,
    hostname: String,
  ): List<Certificate> {
    val queue: Deque<Certificate> = ArrayDeque(chain)
    val result = mutableListOf<Certificate>()
    result.add(queue.removeFirst())
    var foundTrustedCertificate = false

    followIssuerChain@
    for (c in 0 until MAX_SIGNERS) {
      val toVerify = result[result.size - 1] as X509Certificate

        // In this case, we simply put the elements into these buckets evenly.
        return list.chunked(list.size / expectedBucketNumber, smallElementAggregateFunction)
    }

    val largestElement = list.removeFirst()!!

    val largestElementSize = toIntFunction(largestElement)

    return if (largestElementSize >= expectedBucketSize) {
        val bucketNumberOfFirstElement = if (largestElementSize % expectedBucketSize == 0)

            this.logger = logger;
        }

        public ModelInterpolationException run() {
            while (!interpolationTargets.isEmpty()) {
                Object obj = interpolationTargets.removeFirst();

                try {
                    traverseObjectWithParents(obj.getClass(), obj);
                } catch (ModelInterpolationException e) {
                    return e;
                }

        }

        @Override
        void onEndHtmlElement(String name) {
            if (!tagStack.isEmpty() && tagStack.getFirst().equals(name)) {
                tagStack.removeFirst();
                handlerStack.removeFirst().onEndElement(name);
            }
        }

        @Override
        void onStartJavadocTag(String name) {
            tagValue = new StringBuilder();
        }

  }

  override fun isCanceled() = canceled

  override fun plan(): FakePlan {
    // Return deferred plans preferentially. These don't require addPlan().
    if (deferredPlans.isNotEmpty()) return deferredPlans.removeFirst() as FakePlan

    if (nextPlanIndex >= plans.size && autoGeneratePlans) addPlan()

    require(nextPlanIndex < plans.size) {
      "not enough plans! call addPlan() or set autoGeneratePlans=true in the test to set this up"

                CollectionSize.SEVERAL,
                CollectionFeature.SERIALIZABLE,
                CollectionFeature.ALLOWS_NULL_VALUES)
            .createTestSuite());

    final Function<String, String> removeFirst = new RemoveFirstFunction();

    suite.addTest(
        ListTestSuiteBuilder.using(
                new TestStringListGenerator() {
                  @Override

                CollectionSize.SEVERAL,
                CollectionFeature.SERIALIZABLE,
                CollectionFeature.ALLOWS_NULL_VALUES)
            .createTestSuite());

    final Function<String, String> removeFirst = new RemoveFirstFunction();

    suite.addTest(
        ListTestSuiteBuilder.using(
                new TestStringListGenerator() {
                  @Override

    val pooled1 = planReusePooledConnection()
    if (pooled1 != null) return pooled1

    // Attempt a deferred plan before new routes.
    if (deferredPlans.isNotEmpty()) return deferredPlans.removeFirst()

    // Do blocking calls to plan a route for a new connection.
    val connect = planConnect()

    // Now that we have a set of IP addresses, make another attempt at getting a connection from

   */
  @Override
  public void close() throws IOException {
    Throwable throwable = thrown;

    // close closeables in LIFO order
    while (!stack.isEmpty()) {
      Closeable closeable = stack.removeFirst();
      try {
        closeable.close();
      } catch (Throwable e) {
        if (throwable == null) {
          throwable = e;
        } else {
          suppressor.suppress(closeable, throwable, e);

        if (isEmpty()) {
            return null;
        }
        return header.previous;
    }

    /**
     * 最初の要素を削除します。
     *
     * @return 最初の要素
     */
    public E removeFirst() {
        if (isEmpty()) {
            throw new NoSuchElementException();
        }
        final E first = header.next.element;
        header.next.remove();
        return first;
    }

    /**