Integrated: 8353278: Consolidate local file URL checks in jar: and file: URL schemes

[Eirik Bjørsnøs]

On Mon, 31 Mar 2025 14:46:32 GMT, Eirik Bjørsnøs <eirbjo at openjdk.org> wrote:

> Please help review this cleanup PR which consolidates 'local file' URL checks across the 'file:' and 'jar:' URL scheme implementations and defines this check in terms of RFC 8089, Section 2.
> 
> This PR:
> 
> * Moves `URLJarFile.isFileURL` to `sun.net.www.ParseUtil` where it is documented according to RFC 8089 and given the more suitable name `isLocalFileURL`
> * Updates `isLocalFileURL` to simplify an `if (x) return true;` statement to `return x;`
> * Updates `URLJarFile.getJarFile` and `JarFileFactory.getOrCreate` to use `isLocalFileURL`
> * Updates `JarFileFactory.urlFor` to use `isLocalFileURL` (while maintaining and documenting the historical and subtly different non-treatment of '~' as an alias for 'localhost')
> * Updates `sun.net.www.protocol.file.Handler.openConnection` to use `isLocalFileURL` in windows/unix implementations
> 
> This is a pure cleanup / refactoring PR, no tests are updated here. Existing testing in this area seems sparse, so I have tried to limit the number of code tweaks to a minimium to make reviews easier.
> 
> Testing: GHA runs green, as well as tier2 on MacOS.

This pull request has now been integrated.

Changeset: 9a391f44
Author:    Eirik Bjørsnøs <eirbjo at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/9a391f44e038d6c15a7872164bd3099edad93c8d
Stats:     47 lines in 5 files changed: 18 ins; 17 del; 12 mod

8353278: Consolidate local file URL checks in jar: and file: URL schemes

Reviewed-by: dfuchs, jpai

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PR: https://git.openjdk.org/jdk/pull/24332