/** Simple same thread listening executor service that doesn't handle shutdown. */
  private static class TestListeningExecutorService extends AbstractListeningExecutorService {

    @Override
    public void execute(Runnable runnable) {
      assertThat(runnable).isInstanceOf(TrustedListenableFutureTask.class);
      runnable.run();
    }

    @Override
    public void shutdown() {}

    @Override
    public List<Runnable> shutdownNow() {

  /** Simple same thread listening executor service that doesn't handle shutdown. */
  private static class TestListeningExecutorService extends AbstractListeningExecutorService {

    @Override
    public void execute(Runnable runnable) {
      assertThat(runnable).isInstanceOf(TrustedListenableFutureTask.class);
      runnable.run();
    }

    @Override
    public void shutdown() {}

    @Override
    public List<Runnable> shutdownNow() {

    private static final Logger log = LoggerFactory.getLogger(AbstractCIFSContext.class);
    private boolean closed;

    /**
     * Default constructor that registers a shutdown hook for cleanup
     */
    public AbstractCIFSContext() {
        Runtime.getRuntime().addShutdownHook(this);
    }

    /**
     * @param creds the credentials to use

    serializer = ExecutionSequencer.create();
    firstFuture = SettableFuture.create();
    firstCallable = new TestCallable(firstFuture);
  }

  @Override
  public void tearDown() throws Exception {
    executor.shutdown();
  }

  public void testCallableStartsAfterFirstFutureCompletes() {
    @SuppressWarnings({"unused", "nullness"})
    Future<?> possiblyIgnoredError = serializer.submitAsync(firstCallable, directExecutor());

        }
    }

    @Test
    @DisplayName("MultiChannelManager should shutdown cleanly")
    void testShutdown() {
        assertDoesNotThrow(() -> {
            multiChannelManager.shutdown();
        });
    }

    @Test
    @DisplayName("createDefaultContext should work")
    void testCreateDefaultContext() throws Exception {

    redQueue.shutdown()

    redQueue.execute("task", 100.µs) {
      // Do nothing.
    }

    taskFaker.assertNoMoreTasks()

    assertThat(testLogHandler.takeAll()).containsExactly(
      "FINE: Q10000 schedule canceled (queue is shutdown): task",
    )
  }

  @Test fun scheduleThrowsWhenShutdown() {
    redQueue.shutdown()

            changeNotifier.stopWatching(directoryPath);
            baseLeaseManager.releaseLease(entry.getLeaseKey());
        }
    }

    /**
     * Shutdown the directory lease manager
     */
    public void shutdown() {
        scheduler.shutdown();
        try {
            if (!scheduler.awaitTermination(5, TimeUnit.SECONDS)) {
                scheduler.shutdownNow();
            }

    return delegate.invokeAny(wrapTasks(tasks), timeout, unit);
  }

  // The remaining methods just delegate.

  @Override
  public final void shutdown() {
    delegate.shutdown();
  }

  @Override
  @CanIgnoreReturnValue
  public final List<Runnable> shutdownNow() {
    return delegate.shutdownNow();
  }

  @Override
  public final boolean isShutdown() {

        }
    }

    /**
     * Cleanup and shutdown the multi-channel manager.
     */
    public void shutdown() {
        log.info("Shutting down MultiChannelManager");

        // Close all channels
        for (String sessionId : new ArrayList<>(sessionChannels.keySet())) {
            removeChannels(sessionId);
        }

        // Shutdown thread pools
        healthCheckExecutor.shutdown();

   */
  @ForOverride
  protected abstract void doStart();

  /**
   * This method should be used to initiate service shutdown. The invocation of this method should
   * cause a call to {@link #notifyStopped()}, either during this method's run, or after it has
   * returned. If shutdown fails, the invocation should cause a call to {@link
   * #notifyFailed(Throwable)} instead.
   *