Can not call a private method, no idea why ?

[forax at univ-mlv.fr]

> De: "Anna Kozlova" <anna.kozlova at jetbrains.com>
> À: "Remi Forax" <forax at univ-mlv.fr>
> Cc: "compiler-dev" <compiler-dev at openjdk.java.net>
> Envoyé: Jeudi 21 Janvier 2021 11:53:18
> Objet: Re: Can not call a private method, no idea why ?

> Hi Remi,

> type of `map.apply(null)` is capture of `? extends IOBug` and thus it has no
> access to private methods of IOBug. Do I miss something?

Why the type (? extends IOBug) and not the corresponding class, the erasure (IOBug) is used here to check the method access ? 

> Thanks,
> Anna

regards, 
Rémi 

> On Thu, Jan 21, 2021 at 9:34 AM Remi Forax < [ mailto:forax at univ-mlv.fr |
> forax at univ-mlv.fr ] > wrote:

>> The following code doesn't compile.
>> No idea why ?

>> public interface IOBug {
>> private IOBug foo() {
>> return this;
>> }

>> default IOBug flatMap(Function<? super Object, ? extends IOBug> map) {
>> return map.apply(null).foo();
>> ^------
>> }
>> }

>> It works if foo is declared as a default method instead of a private method.

>> regards,
>> Rémi
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