RFR: 8347826: Introspector shows wrong method list after 8071693 [v4]

Roman Marchenko rmarchenko at openjdk.org
Thu Feb 27 10:35:21 UTC 2025


On Thu, 27 Feb 2025 03:28:57 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

>>> > It was implemented in a way to minimize the difference between different 'stopClasses' for the same object. In the example above, the next call will produce the same properties:
>>> > ...
>>> > Thus, the methods of the current class have some priority over those of the parent class.
>>> > But if the same class has multiple setFoo(xxx) methods, the behavior will be undefined/unspecified.
>>> 
>>> Currently, I see from `PropertyInfo` implementation that methods are just sorted by argument's type name if arguments are not assignable from each other. So, in case `Long` vs `Number`, `Long` will be chosen (`isAssignable()` check works); in case `Float` vs `Integer`, `Float` will be chosen (sorted by type name).
>> 
>> There is "test/jdk/java/beans/Introspector/TestMethodOrderDependence.java" which was added to prevent accidental change in the implementation, but part of the behavior is undefined/unspecified.
>> 
>>>If no docs, could you review the test cases below, please? Is it correct, or redundant, or incomplete? I will add them to the test when OK.
>> 
>> New tests are always welcome, especially for interfaces, as they are a relatively new feature.
>
>> @mrserb If I reverse sorting order, or remove sorting at all, 2 tests are failed - OverloadedSetter and TestMethodOrderDependence. So it doesn't look an utility wrapper, as 2 tests rely on the sorting order. Or am I mistaken?
> 
> I meant to delete the next code you added in the [MethodInfo.java](https://github.com/openjdk/jdk/pull/23443/files#diff-2b692928e718b6c457a50aac719ae8b1ace8a2cb2426428fca14c67035e78080):
> 
>             if (a.isDefault() != b.isDefault()) {
>                 return a.isDefault() ? -1 : 1; // default methods go first
>             }
> 
> and update the logic for read/write in the [PropertyInfo.java#initialize](https://github.com/openjdk/jdk/pull/23443/files#diff-ef0d6cd4a6177670eb9196da7ac4d67d1eddef222aadbfbf49075e74395fe9bbL73) to get the same result.

@mrserb
I updated PR, could you review?

-------------

PR Comment: https://git.openjdk.org/jdk/pull/23443#issuecomment-2687539682


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