*
     * <p>When {@link #executor} is a directExecutor(), the value written to
     * {@code workerRunningState} will be available synchronously, and behaviour will be
     * deterministic.
     */
    @SuppressWarnings("GuardedBy")
    boolean alreadyMarkedQueued = workerRunningState != QUEUING;
    if (alreadyMarkedQueued) {
      return;
    }

   * {@code delegate} has begun to reject execution, the previously submitted tasks may never run,
   * despite not throwing a RejectedExecutionException synchronously with the call to {@code
   * execute}. If this behaviour is problematic, use an Executor with a single thread (e.g. {@link
   * Executors#newSingleThreadExecutor}).
   *
   * @since 23.3 (since 23.1 as {@code sequentialExecutor})
   */
  @J2ktIncompatible

      COMMA_SPLITTER.withKeyValueSeparator("=").split("a=1,b,c=2");
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  /**
   * Testing the behavior in https://github.com/google/guava/issues/1900 - this behavior may want to
   * be changed?
   */
  public void testMapSplitter_extraValueDelimiter() {
    try {
      COMMA_SPLITTER.withKeyValueSeparator("=").split("a=1,c=2=");
      fail();

      COMMA_SPLITTER.withKeyValueSeparator("=").split("a=1,b,c=2");
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  /**
   * Testing the behavior in https://github.com/google/guava/issues/1900 - this behavior may want to
   * be changed?
   */
  public void testMapSplitter_extraValueDelimiter() {
    try {
      COMMA_SPLITTER.withKeyValueSeparator("=").split("a=1,c=2=");
      fail();

      ParameterizedType parameterizedType =
          requireNonNull((ParameterizedType) subclass.getGenericSuperclass());
      for (ClassOwnership behavior : ClassOwnership.values()) {
        if (behavior.getOwnerType(LocalClass.class) == parameterizedType.getOwnerType()) {
          return behavior;
        }
      }
      throw new AssertionError();
    }
  }

  /**

   *   Throwables.propagateIfInstanceOf(t, SQLException.class);
   *   throw Throwables.propagate(t);
   * }
   * </pre>
   *
   * @deprecated Use {@link #throwIfInstanceOf}, which has the same behavior but rejects {@code
   *     null}.
   */
  @Deprecated
  @J2ktIncompatible
  @GwtIncompatible // throwIfInstanceOf
  public static <X extends Throwable> void propagateIfInstanceOf(

   *   Throwables.propagateIfInstanceOf(t, SQLException.class);
   *   throw Throwables.propagate(t);
   * }
   * </pre>
   *
   * @deprecated Use {@link #throwIfInstanceOf}, which has the same behavior but rejects {@code
   *     null}.
   */
  @Deprecated
  @J2ktIncompatible
  @GwtIncompatible // throwIfInstanceOf
  public static <X extends Throwable> void propagateIfInstanceOf(

  public final String join(
      @CheckForNull Object first, @CheckForNull Object second, @Nullable Object... rest) {
    return join(iterable(first, second, rest));
  }

  /**
   * Returns a joiner with the same behavior as this one, except automatically substituting {@code
   * nullText} for any provided null elements.
   */
  public Joiner useForNull(String nullText) {
    checkNotNull(nullText);
    return new Joiner(this) {

 * by other {@code CycleDetectingLockFactory} instances (except those with {@code Policy.DISABLED}).
 * A lock's behavior when a cycle is detected, however, is defined by the {@code Policy} of the
 * factory that created it. This allows detection of cycles across components while delegating
 * control over lock behavior to individual components.
 *
 * <p>Applications are encouraged to use a {@code CycleDetectingLockFactory} to create any locks for

      } catch (UnsupportedOperationException expected) {
      }
    }
    assertInvariants(map);
  }

  @J2ktIncompatible // https://youtrack.jetbrains.com/issue/KT-58242/ undefined behavior (crash)
  public void testContainsKey() {
    Map<K, V> map;
    K unmappedKey;
    try {
      map = makePopulatedMap();
      unmappedKey = getKeyNotInPopulatedMap();