On Wed, 8 Oct 2025 13:29:19 GMT, Jaikiran Pai <[email protected]> wrote:

>> Thanks for adding the reachability fence. An other possibility would have 
>> been to temporarily stash `conn` in a static field.
>
>> If I'm not mistaken at least FileInputStream has a cleaner to close its file 
>> descriptor:
>> 
>> https://github.com/openjdk/jdk/blob/23fcbb0badbef6d22f63ca6c5b26b0693002592c/src/java.base/share/classes/java/io/FileInputStream.java#L140
> 
> 
> You are right indeed - I have stared at that constructor code for several 
> minutes but hadn't spotted this. I had additionally done a text search for 
> "cleaner" in that class and only found their references in the javadoc text. 
> Thank you for catching this. GC could indeed have played a role here.

This is a very subtle detail, shall we document the rationale for 
`Reference.reachabilityFence(conn)`?

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PR Review Comment: https://git.openjdk.org/jdk/pull/27633#discussion_r2414338877

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