}

  /** Returns the dummy return value for {@code returnType}. */
  abstract <R> @Nullable R dummyReturnValue(TypeToken<R> returnType);

  private final class DummyHandler extends AbstractInvocationHandler implements Serializable {
    private final TypeToken<?> interfaceType;

    DummyHandler(TypeToken<?> interfaceType) {
      this.interfaceType = interfaceType;
    }

    @Override

    assertFreshInstance(new TypeToken<List<String>>() {});
    assertNotInstantiable(new TypeToken<List<EmptyEnum>>() {});
  }

  public void testArrayList() {
    assertFreshInstance(new TypeToken<ArrayList<String>>() {});
    assertNotInstantiable(new TypeToken<ArrayList<EmptyEnum>>() {});
  }

  public void testLinkedList() {
    assertFreshInstance(new TypeToken<LinkedList<String>>() {});
  }

            new TypeToken<Class3<String>>() {},
            new TypeToken<Interface3<String>>() {},
            new TypeToken<Iterable<String>>() {},
            TypeToken.of(Class2.class),
            TypeToken.of(Interface12.class),
            TypeToken.of(Interface1.class),
            TypeToken.of(Interface2.class),
            TypeToken.of(Class1.class),
            TypeToken.of(Object.class));

    extends ForwardingMap<TypeToken<? extends @NonNull B>, B> implements TypeToInstanceMap<B> {
  /** Creates a new map. */
  public MutableTypeToInstanceMap() {}

  private final Map<TypeToken<? extends @NonNull B>, B> backingMap = new HashMap<>();

  @Override
  public <T extends @NonNull B> @Nullable T getInstance(Class<T> type) {
    return trustedGet(TypeToken.of(type));
  }

  @Override

        .that(TypeToken.of(paramType).isSubtypeOf(returnType))
        .isTrue();
    assertWithMessage("%s is supertype of %s", returnType, paramType)
        .that(TypeToken.of(returnType).isSupertypeOf(paramType))
        .isTrue();
    if (!spec.suppressGetSubtype()) {
      assertThat(getSubtype(returnType, TypeToken.of(paramType).getRawType())).isEqualTo(paramType);
    }

    Invokable<?, Iterable<String>> delegate =
        Prepender.method("prepend", String.class, Iterable.class)
            .returning(new TypeToken<Iterable<String>>() {});
    assertEquals(new TypeToken<Iterable<String>>() {}, delegate.getReturnType());
    Iterable<String> result = delegate.invoke(null, "a", ImmutableList.of("b", "c"));

    extends ForwardingMap<TypeToken<? extends @NonNull B>, B> implements TypeToInstanceMap<B> {
  /** Creates a new map. */
  public MutableTypeToInstanceMap() {}

  private final Map<TypeToken<? extends @NonNull B>, B> backingMap = new HashMap<>();

  @Override
  public <T extends @NonNull B> @Nullable T getInstance(Class<T> type) {
    return trustedGet(TypeToken.of(type));
  }

  @Override

        .that(TypeToken.of(paramType).isSubtypeOf(returnType))
        .isTrue();
    assertWithMessage("%s is supertype of %s", returnType, paramType)
        .that(TypeToken.of(returnType).isSupertypeOf(paramType))
        .isTrue();
    if (!spec.suppressGetSubtype()) {
      assertThat(getSubtype(returnType, TypeToken.of(paramType).getRawType())).isEqualTo(paramType);
    }

      return defaultClass;
    }
    if (type.getRawType() == TypeToken.class) {
      // If parameter is TypeToken<? extends Foo>, we return TypeToken<Foo>.
      @SuppressWarnings("unchecked")
      T defaultType = (T) getFirstTypeParameter(type.getType());
      return defaultType;
    }
    if (type.getRawType() == Converter.class) {
      TypeToken<?> convertFromType = type.resolveType(Converter.class.getTypeParameters()[0]);

      return defaultClass;
    }
    if (type.getRawType() == TypeToken.class) {
      // If parameter is TypeToken<? extends Foo>, we return TypeToken<Foo>.
      @SuppressWarnings("unchecked")
      T defaultType = (T) getFirstTypeParameter(type.getType());
      return defaultType;
    }
    if (type.getRawType() == Converter.class) {
      TypeToken<?> convertFromType = type.resolveType(Converter.class.getTypeParameters()[0]);