assertThat(new TypeToken<Object>() {}.getGenericSuperclass()).isNull();
    assertEquals(TypeToken.of(Object.class), new TypeToken<Object[]>() {}.getGenericSuperclass());
    assertThat(new TypeToken<List<String>>() {}.getGenericSuperclass()).isNull();
    assertEquals(
        TypeToken.of(Object.class), new TypeToken<List<String>[]>() {}.getGenericSuperclass());
  }

    assertThat(new TypeToken<Object>() {}.getGenericSuperclass()).isNull();
    assertEquals(TypeToken.of(Object.class), new TypeToken<Object[]>() {}.getGenericSuperclass());
    assertThat(new TypeToken<List<String>>() {}.getGenericSuperclass()).isNull();
    assertEquals(
        TypeToken.of(Object.class), new TypeToken<List<String>[]>() {}.getGenericSuperclass());
  }

   * Object} or an interface. This method is similar but different from {@link
   * Class#getGenericSuperclass}. For example, {@code new TypeToken<StringArrayList>()
   * {}.getGenericSuperclass()} will return {@code new TypeToken<ArrayList<String>>() {}}; while
   * {@code StringArrayList.class.getGenericSuperclass()} will return {@code ArrayList<E>}, where
   * {@code E} is the type variable declared by class {@code ArrayList}.
   *