On Wed, 17 Dec 2025 11:05:35 GMT, David Beaumont <[email protected]> wrote:

>> Allow users of ForwardingFileManager to specify if the delegate file manager 
>> should also be closed.
>> 
>> This fixes a use-after-close bug in TestOriginatingElements, where the 
>> system file manager and wrapping memory file manager have different, nested, 
>> lifetimes resulting in an early call to close the system file manager when 
>> the wrapper is closed, causing subsequent legitimate use of the system file 
>> manager to fail.
>> 
>> This wasn't noticed before now since the system file manager was using the 
>> singleton JRT file-system in which "close" does nothing. Now it's using a 
>> properly scoped instance of the JRT file-system which can be closed.
>> 
>> This fix could also probable go straight into mainline as a clone since it 
>> won't break anything there.
>
> David Beaumont has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   add @since for new method

Fair enough, that was my other thought, but since it's analogous to various I/O 
file/stream forwarding APIs which *do* explicitly call out whether the delegate 
should be closed, I thought I'd push on that route first.

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

PR Comment: https://git.openjdk.org/valhalla/pull/1810#issuecomment-3665564966

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