when(mock.stats()).thenReturn(null);
    assertNull(forward.stats());
  }

  public void testAsMap() {
    when(mock.asMap()).thenReturn(null);
    assertNull(forward.asMap());
  }

  public void testCleanUp() {
    forward.cleanUp();
    verify(mock).cleanUp();
  }

  /** Make sure that all methods are forwarded. */
  private static class OnlyGet<K, V> extends ForwardingCache<K, V> {
    @Override

    when(mock.stats()).thenReturn(null);
    assertNull(forward.stats());
  }

  public void testAsMap() {
    when(mock.asMap()).thenReturn(null);
    assertNull(forward.asMap());
  }

  public void testCleanUp() {
    forward.cleanUp();
    verify(mock).cleanUp();
  }

  /** Make sure that all methods are forwarded. */
  private static class OnlyGet<K, V> extends ForwardingLoadingCache<K, V> {
    @Override

    when(mock.stats()).thenReturn(null);
    assertNull(forward.stats());
  }

  public void testAsMap() {
    when(mock.asMap()).thenReturn(null);
    assertNull(forward.asMap());
  }

  public void testCleanUp() {
    forward.cleanUp();
    verify(mock).cleanUp();
  }

  /** Make sure that all methods are forwarded. */
  private static class OnlyGet<K, V> extends ForwardingLoadingCache<K, V> {
    @Override

    when(mock.stats()).thenReturn(null);
    assertNull(forward.stats());
  }

  public void testAsMap() {
    when(mock.asMap()).thenReturn(null);
    assertNull(forward.asMap());
  }

  public void testCleanUp() {
    forward.cleanUp();
    verify(mock).cleanUp();
  }

  /** Make sure that all methods are forwarded. */
  private static class OnlyGet<K, V> extends ForwardingCache<K, V> {
    @Override