}

  @Override
  public void invalidate(Object key) {
    throw new UnsupportedOperationException();
  }

  /** @since 11.0 */
  @Override
  // For discussion of <? extends Object>, see getAllPresent.
  public void invalidateAll(Iterable<? extends Object> keys) {
    for (Object key : keys) {
      invalidate(key);
    }
  }

  @Override
  public void invalidateAll() {

  }

  public void testApply() {
    when(mock.apply("key")).thenReturn(Boolean.TRUE);
    assertSame(Boolean.TRUE, forward.apply("key"));
  }

  public void testInvalidate() {
    forward.invalidate("key");
    verify(mock).invalidate("key");
  }

  public void testRefresh() throws ExecutionException {
    forward.refresh("key");
    verify(mock).refresh("key");
  }

  public void testInvalidateAll() {

  }

  @Override
  public void invalidate(Object key) {
    throw new UnsupportedOperationException();
  }

  /** @since 11.0 */
  @Override
  // For discussion of <? extends Object>, see getAllPresent.
  public void invalidateAll(Iterable<? extends Object> keys) {
    for (Object key : keys) {
      invalidate(key);
    }
  }

  @Override
  public void invalidateAll() {

  override fun getCreationTime(): Long {
    return delegate!!.creationTime
  }

  override fun getLastAccessedTime(): Long {
    return delegate!!.lastAccessedTime
  }

  override fun invalidate() {
    delegate!!.invalidate()
  }

  override fun isValid(): Boolean {
    return delegate!!.isValid
  }

  override fun putValue(
    s: String,
    o: Any,
  ) {
    delegate!!.putValue(s, o)
  }

    assertEquals(
        ImmutableMap.of("key", Boolean.TRUE), forward.getAllPresent(ImmutableList.of("key")));
  }

  public void testInvalidate() {
    forward.invalidate("key");
    verify(mock).invalidate("key");
  }

  public void testInvalidateAllIterable() {
    forward.invalidateAll(ImmutableList.of("key"));
    verify(mock).invalidateAll(ImmutableList.of("key"));
  }

    assertEquals(
        ImmutableMap.of("key", Boolean.TRUE), forward.getAllPresent(ImmutableList.of("key")));
  }

  public void testInvalidate() {
    forward.invalidate("key");
    verify(mock).invalidate("key");
  }

  public void testInvalidateAllIterable() {
    forward.invalidateAll(ImmutableList.of("key"));
    verify(mock).invalidateAll(ImmutableList.of("key"));
  }

    delegate().put(key, value);
  }

  /** @since 12.0 */
  @Override
  public void putAll(Map<? extends K, ? extends V> m) {
    delegate().putAll(m);
  }

  @Override
  public void invalidate(Object key) {
    delegate().invalidate(key);
  }

  /** @since 11.0 */
  @Override
  // For discussion of <? extends Object>, see getAllPresent.
  public void invalidateAll(Iterable<? extends Object> keys) {

    delegate().put(key, value);
  }

  /** @since 12.0 */
  @Override
  public void putAll(Map<? extends K, ? extends V> m) {
    delegate().putAll(m);
  }

  @Override
  public void invalidate(Object key) {
    delegate().invalidate(key);
  }

  /** @since 11.0 */
  @Override
  // For discussion of <? extends Object>, see getAllPresent.
  public void invalidateAll(Iterable<? extends Object> keys) {

    cache.invalidateAll(toInvalidate);
    assertEquals(toInvalidate, invalidated);
  }

  public void testEmptySimpleStats() {
    StatsCounter counter = new SimpleStatsCounter();
    CacheStats stats = counter.snapshot();
    assertEquals(0, stats.requestCount());
    assertEquals(0, stats.hitCount());
    assertEquals(1.0, stats.hitRate());
    assertEquals(0, stats.missCount());

  override fun getValue(s: String): Any {
    throw UnsupportedOperationException()
  }

  override fun getValueNames(): Array<String> {
    throw UnsupportedOperationException()
  }

  override fun invalidate() {
    throw UnsupportedOperationException()
  }

  override fun isValid(): Boolean {
    throw UnsupportedOperationException()
  }