RFR: 8191963: Path.equals() and File.equals() return true for two different files on Windows [v2]

[Brian Burkhalter]

On Mon, 6 Oct 2025 16:12:49 GMT, Naoto Sato <naoto at openjdk.org> wrote:

>>> > [...] system property to restore long standing behavior.
>>> 
>>> Added in [a63e13e](https://github.com/openjdk/jdk/commit/a63e13e1e086d299a4e1326606f3322a42cb5977).
>> 
>> @naotoj, @xuemingshen-oracle, do you have any thoughts on the compatibility impact?
>
>> > > [...] system property to restore long standing behavior.
>> > 
>> > 
>> > Added in [a63e13e](https://github.com/openjdk/jdk/commit/a63e13e1e086d299a4e1326606f3322a42cb5977).
>> 
>> @naotoj, @xuemingshen-oracle, do you have any thoughts on the compatibility impact?
> 
> Would it be safer to make the new behavior as opt-in, as well as making the system property to be windows specific `windowsCompatibleEquals` or something? Making it as the default might be a bit risky to me.
> 
> Also, IIUC the test is comparing cases between 'I', '\u0130' and '\u0131'. Probably we need to cross test with 'i' too.

@naotoj Thanks for the comments.

> Would it be safer to make the new behavior as opt-in,

Commit 53caf9e changes it to opt-in.

> as well as making the system property to be windows specific

Also done in 53caf9e.

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PR Comment: https://git.openjdk.org/jdk/pull/25788#issuecomment-3403596720