}

    @Override
    public O apply(I input) {
      applyCount++;
      return delegate.apply(input);
    }

    void verifyCallCount(int expected) {
      assertThat(applyCount).isEqualTo(expected);
    }
  }

  private static <X extends Throwable, V> Function<X, V> unexpectedFunction() {
    return new Function<X, V>() {
      @Override
      public V apply(X t) {

    }

    @Override
    public O apply(I input) {
      applyCount++;
      return delegate.apply(input);
    }

    void verifyCallCount(int expected) {
      assertThat(applyCount).isEqualTo(expected);
    }
  }

  private static <X extends Throwable, V> Function<X, V> unexpectedFunction() {
    return new Function<X, V>() {
      @Override
      public V apply(X t) {

    return compute(key, (k, oldValue) -> (oldValue == null) ? function.apply(key) : oldValue);
  }

  @Override
  @CheckForNull
  public V computeIfPresent(
      K key, BiFunction<? super K, ? super V, ? extends @Nullable V> function) {
    checkNotNull(key);
    checkNotNull(function);
    return compute(key, (k, oldValue) -> (oldValue == null) ? null : function.apply(k, oldValue));
  }

  @Override
  @CheckForNull

    checkNotNull(function);
    return new AsyncClosingFunction<V, U>() {
      @Override
      public ClosingFuture<U> apply(DeferredCloser closer, V input) throws Exception {
        return ClosingFuture.from(function.apply(input));
      }
    };
  }

  /**
   * Returns a new {@code ClosingFuture} pipeline step derived from this one by applying a function

    KEY {
      @Override
      @CheckForNull
      public Object apply(Entry<?, ?> entry) {
        return entry.getKey();
      }
    },
    VALUE {
      @Override
      @CheckForNull
      public Object apply(Entry<?, ?> entry) {
        return entry.getValue();
      }
    };
  }

  @SuppressWarnings("unchecked")

    @Override
    public ImmutableMap<K, V> getAll(Iterable<? extends K> keys) throws ExecutionException {
      return autoDelegate.getAll(keys);
    }

    @Override
    public V apply(K key) {
      return autoDelegate.apply(key);
    }

    @Override
    public void refresh(K key) {
      autoDelegate.refresh(key);
    }

    private Object readResolve() {
      return autoDelegate;

        return isExists;
    }

/**
 * Tests to see if the file this <code>SmbFile</code> represents can be
 * read. Because any file, directory, or other resource can be read if it
 * exists, this method simply calls the <code>exists</code> method.
 *
 * @return <code>true</code> if the file is read-only
 */

    public boolean canRead() throws SmbException {