private static List<String> newDelegatingList(List<String> delegate) {
    return Reflection.newProxy(List.class, new DelegatingInvocationHandler(delegate));
  }

  @SuppressWarnings("unchecked") // proxy of List<String>
  private static List<String> newDelegatingListWithEquals(List<String> delegate) {
    return Reflection.newProxy(List.class, new DelegatingInvocationHandlerWithEquals(delegate));
  }

    service = SimpleTimeLimiter.create(executor);
  }

  public void testNewProxy_goodMethodWithEnoughTime() throws Exception {
    SampleImpl target = new SampleImpl(DELAY_MS);
    Sample proxy = service.newProxy(target, Sample.class, ENOUGH_MS, MILLISECONDS);
    Stopwatch stopwatch = Stopwatch.createStarted();

    String result = proxy.sleepThenReturnInput("x");

    assertThat(result).isEqualTo("x");

  }

  public void testNewProxy() throws Exception {
    Runnable runnable = Reflection.newProxy(Runnable.class, X_RETURNER);
    assertEquals("x", runnable.toString());
  }

  public void testNewProxyCantWorkOnAClass() throws Exception {
    assertThrows(
        IllegalArgumentException.class, () -> Reflection.newProxy(Object.class, X_RETURNER));
  }

  private static final InvocationHandler X_RETURNER =

      Class<T> interfaceType, Method method, Function<? super T, ? extends T> wrapperFunction) {
    RuntimeException exception = new RuntimeException();
    T proxy =
        Reflection.newProxy(
            interfaceType,
            new AbstractInvocationHandler() {
              @Override
              protected Object handleInvocation(Object p, Method m, @Nullable Object[] args)

 *   protected Object handleInvocation(Object proxy, Method method, Object[] args) {
 *     throw new UnsupportedOperationException();
 *   }
 * }
 *
 * CharSequence unsupported = Reflection.newProxy(CharSequence.class, new Unsupported());
 * </pre>
 *
 * @author Ben Yu
 * @since 12.0
 */
public abstract class AbstractInvocationHandler implements InvocationHandler {
  /** Constructor for use by subclasses. */

  /**
   * Returns a new proxy for {@code interfaceType}. Proxies of the same interface are equal to each
   * other if the {@link DummyProxy} instance that created the proxies are equal.
   */
  final <T> T newProxy(TypeToken<T> interfaceType) {
    Set<Class<?>> interfaceClasses = new LinkedHashSet<>();
    Set<Class<? super T>> allInterfaceClasses = interfaceType.getTypes().interfaces().rawTypes();

      Class<T> interfaceType, Method method, Function<? super T, ? extends T> wrapperFunction) {
    RuntimeException exception = new RuntimeException();
    T proxy =
        Reflection.newProxy(
            interfaceType,
            new AbstractInvocationHandler() {
              @Override
              protected Object handleInvocation(Object p, Method m, @Nullable Object[] args)

    if (rawType.isInterface()) {
      // always create a new proxy
      return newProxy(rawType);
    }
    return ArbitraryInstances.get(rawType);
  }

  private <T> T newProxy(Class<T> interfaceType) {
    return Reflection.newProxy(interfaceType, new FreshInvocationHandler(interfaceType));
  }

  private Object invokeGeneratorMethod(Method generator, Object... args) {

public final class FakeTimeLimiter implements TimeLimiter {
  /** Creates a new {@link FakeTimeLimiter}. */
  public FakeTimeLimiter() {}

  @CanIgnoreReturnValue // TODO(kak): consider removing this
  @Override
  public <T> T newProxy(
      T target, Class<T> interfaceType, long timeoutDuration, TimeUnit timeoutUnit) {
    checkNotNull(target);
    checkNotNull(interfaceType);
    checkNotNull(timeoutUnit);
    return target; // ha ha
  }

public final class FakeTimeLimiter implements TimeLimiter {
  /** Creates a new {@link FakeTimeLimiter}. */
  public FakeTimeLimiter() {}

  @CanIgnoreReturnValue // TODO(kak): consider removing this
  @Override
  public <T> T newProxy(
      T target, Class<T> interfaceType, long timeoutDuration, TimeUnit timeoutUnit) {
    checkNotNull(target);
    checkNotNull(interfaceType);
    checkNotNull(timeoutUnit);
    return target; // ha ha
  }