logger.get().log(FINER, "cancelling {0}", this);
    boolean cancelled = future.cancel(mayInterruptIfRunning);
    if (cancelled) {
      close();
    }
    return cancelled;
  }

  private void close() {
    logger.get().log(FINER, "closing {0}", this);
    closeables.close();
  }

  private <U extends @Nullable Object> ClosingFuture<U> derive(FluentFuture<U> future) {

   * iterated are the individual lists created, and these are not retained after iteration.
   *
   * @param sets the sets to choose elements from, in the order that the elements chosen from those
   *     sets should appear in the resulting lists
   * @param <B> any common base class shared by all axes (often just {@link Object})

     */
    task.addListener(() -> scheduled.cancel(false), directExecutor());
    return task;
  }

  /**
   * Returns a {@code Future} whose result is taken from the given primary {@code input} or, if the
   * primary input fails with the given {@code exceptionType}, from the result provided by the

    return CollectCollectors.<T, K, V, M>flatteningToMultimap(
        keyFunction, valueFunction, multimapSupplier);
  }

  /**
   * Creates a new {@code Multimap} backed by {@code map}, whose internal value collections are
   * generated by {@code factory}. Most users should prefer {@link MultimapBuilder}, though a small
   * number of users will need this method to cover map or collection types that {@link

          .url(server.url("/"))
          .build(),
      ).execute()
      .close()
    eventRecorder.removeUpToEvent<CallEnd>()
    val call =
      client.newCallWithListener(
        Request
          .Builder()
          .url(server.url("/"))
          .build(),
      )
    val response = call.execute()
    response.close()
    assertThat(eventRecorder.recordedEventTypes()).containsExactly(

    createNewCache()
  }

  @AfterEach fun tearDown() {
    while (!toClose.isEmpty()) {
      toClose.pop().close()
    }
    taskFaker.close()

    (filesystem.delegate as? FakeFileSystem)?.checkNoOpenFiles()
  }

  @Test
  fun emptyCache() {
    cache.close()
    assertJournalEquals()
  }

  @Test
  fun recoverFromInitializationFailure() {

 *
 * ```java
 * client.connectionPool().evictAll();
 * ```
 *
 * If your client has a cache, call [close()][Cache.close]. Note that it is an error to create calls
 * against a cache that is closed, and doing so will cause the call to crash.
 *
 * ```java
 * client.cache().close();
 * ```
 *
 * OkHttp also uses daemon threads for HTTP/2 connections. These will exit automatically if they
 * remain idle.

        SmbFile targetFile = new SmbFile(baseUrl + "shared/" + targetFileName, renameContext);

        // Copy content to new file
        srcForCopy.copyTo(targetFile);
        srcForCopy.close();
        targetFile.close();

        // Wait before delete
        Thread.sleep(500);
        System.gc();
        Thread.sleep(200);

        // Delete original using fresh context

    assertThat(c0e0.exchangeIndex).isEqualTo(0)
    val c0e1 = server.takeRequest()
    assertThat(c0e1.connectionIndex).isEqualTo(0)
    assertThat(c0e1.exchangeIndex).isEqualTo(1)
    response1.close()
    response2.close()
  }

  @Test
  fun connectionWindowUpdateAfterCanceling() {
    server.enqueue(
      MockResponse
        .Builder()

@Timeout(5)
@Tag("Slow")
class Http2ConnectionTest {
  private val peer = MockHttp2Peer()
  private val taskFaker = TaskFaker()

  @AfterEach fun tearDown() {
    peer.close()
    taskFaker.close()
  }

  @Test fun serverPingsClientHttp2() {
    // Write the mocking script.
    peer.sendFrame().settings(Settings())
    peer.acceptFrame() // ACK
    peer.sendFrame().ping(false, 2, 3)