* </pre>
   */
  private static class ExampleStackTrace extends IllegalStateException {

    static final StackTraceElement[] EMPTY_STACK_TRACE = new StackTraceElement[0];

    static final ImmutableSet<String> EXCLUDED_CLASS_NAMES =
        ImmutableSet.of(
            CycleDetectingLockFactory.class.getName(),
            ExampleStackTrace.class.getName(),
            LockGraphNode.class.getName());

    ArbitraryInstances.get(Executor.class).execute(ArbitraryInstances.get(Runnable.class));
    assertNotNull(ArbitraryInstances.get(ThreadFactory.class));
    assertFreshInstanceReturned(
        BlockingQueue.class,
        BlockingDeque.class,
        PriorityBlockingQueue.class,
        DelayQueue.class,
        SynchronousQueue.class,
        ConcurrentMap.class,

  }

  private static class SubclassThatTriesToOverrideBadStaticMethod
      extends ClassThatFailsToThrowForStatic {
    static void staticOneArg(@Nullable String s) {}
  }

  public void testSubclassThatTriesToOverrideBadStaticMethod() {
    shouldFail(SubclassThatTriesToOverrideBadStaticMethod.class);
  }

  private static final class HardToCreate {

  public void testNotInterfaceType() {
    assertThrows(
        IllegalArgumentException.class,
        () ->
            new ForwardingWrapperTester()
                .testForwarding(String.class, Functions.<String>identity()));
  }

  public void testNulls() {
    new NullPointerTester()
        .setDefault(Class.class, Runnable.class)
        .testAllPublicInstanceMethods(new ForwardingWrapperTester());
  }

        return rawType.getEnclosingClass();
      }
    },
    LOCAL_CLASS_HAS_NO_OWNER {
      @Override
      @CheckForNull
      Class<?> getOwnerType(Class<?> rawType) {
        if (rawType.isLocalClass()) {
          return null;
        } else {
          return rawType.getEnclosingClass();
        }
      }
    };

    @CheckForNull

    List<Integer> base = createList(Integer.class, 1, 2, 2);
    List<Integer> copy = createList(Integer.class, 1, 2, 2);
    List<Integer> outOfOrder = createList(Integer.class, 2, 2, 1);
    List<Integer> diffValue = createList(Integer.class, 1, 2, 4);
    List<Integer> diffLength = createList(Integer.class, 1, 2);
    List<Integer> empty = createList(Integer.class);

  public void testToStringHelperLenient_localInnerClass() {
    class LocalInnerClass {}
    String toTest = MoreObjects.toStringHelper(new LocalInnerClass()).toString();
    assertTrue(toTest, toTest.matches(".*\\{\\}"));
  }

  @GwtIncompatible // Class names are obfuscated in GWT
  public void testToStringHelper_localInnerNestedClass() {
    class LocalInnerClass {
      class LocalInnerNestedClass {}
    }
    String toTest =

    StopFailingService service = new StopFailingService();
    assertThrows(IllegalStateException.class, () -> service.failureCause());
    service.startAsync().awaitRunning();
    assertThrows(IllegalStateException.class, () -> service.failureCause());
    IllegalStateException e =
        assertThrows(IllegalStateException.class, () -> service.stopAsync().awaitTerminated());
    assertEquals(EXCEPTION, service.failureCause());

    @Override
    public boolean equals(@Nullable Object o) {
      return o == this || o == null;
    }

    @Override
    public int hashCode() {
      return 0;
    }
  }

  /** Test class that returns true even if the test object is of the wrong class */
  private static class InvalidEqualsIncompatibleClassObject {

    @Override

    checkSerialization(Predicates.instanceOf(Integer.class));
  }

  @J2ktIncompatible
  @GwtIncompatible // Predicates.subtypeOf
  public void testSubtypeOf_apply() {
    Predicate<Class<?>> isInteger = Predicates.subtypeOf(Integer.class);

    assertTrue(isInteger.apply(Integer.class));
    assertFalse(isInteger.apply(Float.class));

    assertThrows(NullPointerException.class, () -> isInteger.apply(null));
  }