On Mon, 15 Mar 2021 11:09:45 GMT, Rémi Forax <github.com+828220+fo...@openjdk.org> wrote:
>>> I think it's a bug in javac, it should not even raise a warning but an >>> error. >>> But the spec is not fully clear. >> >> If you think that it's a bug, consider providing feedback to authors of JEP >> 394: >> >>> Other refinements may be incorporated based on further feedback. >> >> I find it hard to believe that authors didn't consider generic use case >> (even though JEP 394 doesn't have examples of that). > > We have considered generics, that why parameterized generics with another > type arguments are forbidden, but i think we have forgotten raw types. I don't think that cast from `Object` to a raw type is unchecked, so as error does not seem warranted to me. However, I agree javac should produce the rawtype warning for rawtypes in pattern matching instanceof, because we are introducing a new variable (and casting). I've filled: https://bugs.openjdk.java.net/browse/JDK-8263590 Note the non-pattern matching instanceof does not produce the rawtype warning, and I don't think it should produce it. ------------- PR: https://git.openjdk.java.net/jdk/pull/2913
