Type wildcard = Types.supertypeOf(Number.class);
    assertEquals(Types.supertypeOf(Number[].class), Types.newArrayType(wildcard));
  }

  public void testNewArrayType_serializable() {
    SerializableTester.reserializeAndAssert(Types.newArrayType(int[].class));
  }

  private static class WithWildcardType {

    @SuppressWarnings("unused")