taskRunner.logger.taskLog(task, this) { "schedule canceled (queue is shutdown)" }
          return
        }
        taskRunner.logger.taskLog(task, this) { "schedule failed (queue is shutdown)" }
        throw RejectedExecutionException()
      }

      if (scheduleAndDecide(task, delayNanos, recurrence = false)) {
        taskRunner.kickCoordinator(this)
      }
    }
  }

  /**

  public SafeTreeMap(SortedMap<K, ? extends V> map) {
    this(new TreeMap<K, V>(map));
  }

  private SafeTreeMap(NavigableMap<K, V> delegate) {
    this.delegate = delegate;
    if (delegate == null) {
      throw new NullPointerException();
    }
    for (K k : keySet()) {
      checkValid(k);
    }
  }

  @Override
  public @Nullable Entry<K, V> ceilingEntry(K key) {
    return delegate.ceilingEntry(checkValid(key));

      .assertLogMatch(Regex("""callEnd"""))
      .assertNoMoreLogs()
  }

  @Test
  fun dnsFail() {
    client =
      OkHttpClient.Builder()
        .dns { _ -> throw UnknownHostException("reason") }
        .eventListenerFactory(loggingEventListenerFactory)
        .build()
    try {
      client.newCall(request().build()).execute()
      fail<Any>()

    return new SerializedForm<>(range, domain);
  }

  @GwtIncompatible // serialization
  @J2ktIncompatible
  private void readObject(ObjectInputStream stream) throws InvalidObjectException {
    throw new InvalidObjectException("Use SerializedForm");
  }

  private static final long serialVersionUID = 0;

  @MapFeature.Require(absent = SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testPut_unsupportedPresentExistingValue() {
    try {
      assertEquals("put(present, existingValue) should return present or throw", v0(), put(e0()));
    } catch (UnsupportedOperationException tolerated) {
    }
    expectUnchanged();
  }

  @MapFeature.Require(absent = SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)

   * FeatureSpecificTestSuiteBuilder.suppressing()}.
   */
  /*
   * TODO(cpovirk): or we could make HOLES_FORBIDDEN a feature. Or we could declare that
   * implementations are permitted to throw IAE if a hole is requested, and we could update
   * test*Hole to permit IAE. (But might this ignore genuine bugs?) But see the TODO above
   * testLower, which could make this all unnecessary
   */

   * the discussion in the {@link ListenableFuture#addListener ListenableFuture.addListener}
   * documentation.
   */
  public void add(Runnable runnable, Executor executor) {
    // Fail fast on a null. We throw NPE here because the contract of Executor states that it throws
    // NPE on null listener, so we propagate that contract up into the add method as well.
    checkNotNull(runnable, "Runnable was null.");

  static Object createTable(int buckets) {
    if (buckets < 2
        || buckets > Ints.MAX_POWER_OF_TWO
        || Integer.highestOneBit(buckets) != buckets) {
      throw new IllegalArgumentException("must be power of 2 between 2^1 and 2^30: " + buckets);
    }
    if (buckets <= BYTE_MAX_SIZE) {
      return new byte[buckets];
    } else if (buckets <= SHORT_MAX_SIZE) {

    } catch (Throwable reflectionFailure) { // sneaky checked exception
      // Some Android 5.0.x Samsung devices have bugs in JDK reflection APIs that cause
      // getDeclaredField to throw a NoSuchFieldException when the field is definitely there.
      // For these users fallback to a suboptimal implementation, based on synchronized. This will
      // be a definite performance hit to those users.

        super(domain, username, null);
        if ( domain == null || username == null || ansiHash == null || unicodeHash == null ) {
            throw new IllegalArgumentException("External credentials cannot be null");
        }
        this.ansiHash = ansiHash;
        this.unicodeHash = unicodeHash;
        this.hashesExternal = true;
    }