assertThat(GenericsUtil.getActualClass(method.getGenericReturnType(), map), is(sameClass(Long.class)));

        method = Hoge.class.getMethod("array");
        assertThat(GenericsUtil.getActualClass(method.getGenericReturnType(), map), is(sameClass(String[].class)));

        method = Hoge.class.getMethod("list");
        assertThat(GenericsUtil.getActualClass(method.getGenericReturnType(), map), is(sameClass(List.class)));

        throws InvocationTargetException, IllegalAccessException {
      return method.invoke(receiver, args);
    }

    @Override
    Type getGenericReturnType() {
      return method.getGenericReturnType();
    }

    @Override
    Type[] getGenericParameterTypes() {
      return method.getGenericParameterTypes();
    }

    @Override

                    try {
                        Type returnType = m.getParameterTypes()[0]
                                .getMethod("get" + entity)
                                .getGenericReturnType();
                        if (returnType instanceof ParameterizedType parameterizedType) {
                            return !parameterizedType.getActualTypeArguments()[0].equals(String.class);

      Map<String, Integer> returningMap() {
        throw new AssertionError();
      }
    }
    Type context = Context.class.getDeclaredMethod("returningMap").getGenericReturnType();
    Type keyType = Map.class.getTypeParameters()[0];
    Type valueType = Map.class.getTypeParameters()[1];

    // context is parameterized type

      Map<String, Integer> returningMap() {
        throw new AssertionError();
      }
    }
    Type context = Context.class.getDeclaredMethod("returningMap").getGenericReturnType();
    Type keyType = Map.class.getTypeParameters()[0];
    Type valueType = Map.class.getTypeParameters()[1];

    // context is parameterized type

        "%s not declared by %s",
        method,
        this);
    return new Invokable.MethodInvokable<T>(method) {
      @Override
      Type getGenericReturnType() {
        return getCovariantTypeResolver().resolveType(super.getGenericReturnType());
      }

      @Override
      Type[] getGenericParameterTypes() {
        return getInvariantTypeResolver().resolveTypesInPlace(super.getGenericParameterTypes());

  }

  private @Nullable Method method = null;

  /** Call this in a {@link TestSubtype} public method asserting subtype relationship. */
  final <T> T isSubtype(T sub) {
    Type returnType = method.getGenericReturnType();
    Type paramType = getOnlyParameterType();
    TestSubtype spec = method.getAnnotation(TestSubtype.class);
    assertWithMessage("%s is subtype of %s", paramType, returnType)

        Parameter param = params.get(i);
        if (!isNullable(param)) {
          checkNotNull(args[i]);
        }
      }
      return dummyReturnValue(interfaceType.resolveType(method.getGenericReturnType()));
    }

    @Override
    public int hashCode() {
      return identity().hashCode();
    }

    @Override
    public boolean equals(@Nullable Object obj) {

  }

  private @Nullable Method method = null;

  /** Call this in a {@link TestSubtype} public method asserting subtype relationship. */
  final <T> T isSubtype(T sub) {
    Type returnType = method.getGenericReturnType();
    Type paramType = getOnlyParameterType();
    TestSubtype spec = method.getAnnotation(TestSubtype.class);
    assertWithMessage("%s is subtype of %s", paramType, returnType)

     */
    public static Class<?> getElementTypeOfCollectionFromReturnType(final Method method) {
        assertArgumentNotNull("method", method);

        final Type returnType = method.getGenericReturnType();
        return GenericsUtil.getRawClass(GenericsUtil.getElementTypeOfCollection(returnType));
    }

    /**
     * Returns the key type of the parameterized map declared as the method's argument type.