* deterministic.
 *
 * This class ensures that at most one thread is running at a time. This is initially the JUnit test
 * thread, which yields its execution privilege while calling [runTasks], [runNextTask], or
 * [advanceUntil]. These functions don't return until the task threads are all idle.
 *
 * Task threads release their execution privilege in these ways:
 *

import java.util.concurrent.BlockingQueue
import java.util.concurrent.LinkedBlockingQueue
import java.util.logging.Logger

/**
 * Default dispatcher that processes a script of responses. Populate the script by calling
 * [enqueue].
 */
public open class QueueDispatcher : Dispatcher() {
  protected val responseQueue: BlockingQueue<MockResponse> = LinkedBlockingQueue()
  private var failFastResponse: MockResponse? = null

 * support even a "normal" `TypeParameter<T>` when `<T>` has a nullable bound. (See the discussion
 * on TypeToken.where.) So, in the interest of failing fast and encouraging the user to switch to a
 * non-null bound if possible, let's require a non-null bound here.
 *
 * TODO(cpovirk): Elaborate on "wouldn't behave as users might expect."
 */

    assertSame(e, urlFormParameterEscaper());
    assertBasicUrlEscaper(e);

    /*
     * Specified as safe by RFC 2396 but not by java.net.URLEncoder. These tests will start failing
     * when the escaper is made compliant with RFC 2396, but that's a good thing (just change them
     * to assertUnescaped).
     */
    assertEscaping(e, "%21", '!');
    assertEscaping(e, "%28", '(');

| Headers.of(Map<String, String>)     | Map<String, String>.toHeaders() |
| HttpUrl.get(String)                 | String.toHttpUrl()              |
| HttpUrl.get(URI)                    | URI.toHttpUrlOrNull()           |
| HttpUrl.get(URL)                    | URL.toHttpUrlOrNull()           |
| HttpUrl.parse(String)               | String.toHttpUrlOrNull()        |

   */
  @Throws(IOException::class)
  fun urls(): MutableIterator<String> {
    return object : MutableIterator<String> {
      private val delegate: MutableIterator<DiskLruCache.Snapshot> = cache.snapshots()
      private var nextUrl: String? = null
      private var canRemove = false

      override fun hasNext(): Boolean {
        if (nextUrl != null) return true

    return getMultiset().setCount(element, getMultiset().count(element), count);
  }

  private void assertSetCountNegativeOldCount() {
    try {
      getMultiset().setCount(e3(), -1, 1);
      fail("calling setCount() with a negative oldCount should throw IllegalArgumentException");
    } catch (IllegalArgumentException expected) {
    }
  }

  // Negative oldCount.

  @CollectionFeature.Require(SUPPORTS_ADD)

    - [Server Binaries](#server-binaries-2)
    - [Node Binaries](#node-binaries-2)
  - [Changelog since v1.20.12](#changelog-since-v12012)
  - [Changes by Kind](#changes-by-kind-2)
    - [Feature](#feature)
    - [Failing Test](#failing-test)
    - [Bug or Regression](#bug-or-regression-2)
  - [Dependencies](#dependencies-2)
    - [Added](#added-2)
    - [Changed](#changed-2)
    - [Removed](#removed-2)
- [v1.20.12](#v12012)

/**
 * A scriptable request/response conversation. Create the script by calling methods like
 * [receiveRequest] in the sequence they are run.
 */
class MockSocketHandler : SocketHandler {
  private val actions = LinkedBlockingQueue<Action>()
  private val results = LinkedBlockingQueue<FutureTask<Void>>()

  fun receiveRequest(expected: String) =
    apply {
      actions += { stream ->

    elements.add(null);
    collection = getSubjectGenerator().create(elements.toArray());
    assertEquals(
        "A Set's hashCode() should be the sum of those of its elements (with "
            + "a null element counting as having a hash of zero).",
        expectedHashCode,
        getSet().hashCode());
  }

  /**
   * Returns the {@link Method} instances for the test methods in this class which call {@code