RFR: 8347826: Introspector shows wrong method list after 8071693 [v9]

[Sergey Bylokhov]

On Thu, 27 Mar 2025 08:12:00 GMT, Roman Marchenko <rmarchenko at openjdk.org> wrote:

>Should getMethodDescriptors() return static methods defined in the interfaces the class extends?

Yes, I think it should return static methods as well, similar to how it works for classes.

>If yes, should it recursively find static methods defined in interfaces? For example, the test scenario 1 defines static int getStaticValue() in A1 interface hidden in the inheritance chain. Should it be included to the method descriptor list?

For classes, this approach returns all static methods up to Object.class, with one exception - when a subclass "overrides" a static method from a parent class. Interfaces should follow a similar logic. 

- In case of a clash with a class method, the class version should take precedence. (Is it better for compatibility?)
- If the same method appears in multiple interfaces within the same hierarchy, the version from the most specific sub-interface should be selected.
- If the method appears in interfaces from different hierarchies, either version can be returned.

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PR Review Comment: https://git.openjdk.org/jdk/pull/23443#discussion_r2024031331