assertThat(TypeToken.of(Types.supertypeOf(String.class)).getGenericInterfaces()).isEmpty();
    assertThat(TypeToken.of(Types.supertypeOf(String[].class)).getGenericInterfaces()).isEmpty();
  }

  public void testGetGenericInterfaces_wildcard_boundIsClass() {
    assertThat(TypeToken.of(Types.subtypeOf(Object.class)).getGenericInterfaces()).isEmpty();

      return ImmutableMap.copyOf(introspector.mappings);
    }

    @Override
    void visitClass(Class<?> clazz) {
      visit(clazz.getGenericSuperclass());
      visit(clazz.getGenericInterfaces());
    }

    @Override
    void visitParameterizedType(ParameterizedType parameterizedType) {
      Class<?> rawClass = (Class<?>) parameterizedType.getRawType();

      return ImmutableMap.copyOf(introspector.mappings);
    }

    @Override
    void visitClass(Class<?> clazz) {
      visit(clazz.getGenericSuperclass());
      visit(clazz.getGenericInterfaces());
    }

    @Override
    void visitParameterizedType(ParameterizedType parameterizedType) {
      Class<?> rawClass = (Class<?>) parameterizedType.getRawType();