Withdrawn: 8378759: Make ZipFile.CleanableResource.inflaterCache field final

[Eirik Bjørsnøs]

On Thu, 26 Feb 2026 12:23:44 GMT, Eirik Bjørsnøs <eirbjo at openjdk.org> wrote:

> Please review this cleanup PR where we simplify synchronization on ZipFile's inflater cache.
> 
> Currently, the `ZipFile.CleanableResource.inflaterCache` field is non-final, is used in synchronization and is set to `null` to indicate a closed inflater cache. This complicates the state considerations for synchronization, requiring double-checking that the cache does not close under us. Generally, correctness of synchronizing on a non-final field which can also be null is hard to reason about.
> 
> This PR marks the `inflaterCache` field as `final` and introduces a boolean flag field to model the closed state explicitly. This allows synchronization to be simplified, double-checking to be removed and the closed state to be more obvious. If we want the future ZipFile to be less mutable, this is one step in that direction.
> 
> Cleanup refactoring, `noreg-cleanup`

This pull request has been closed without being integrated.

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PR: https://git.openjdk.org/jdk/pull/29937