RFR: 8365626: (fs) Improve handling of broken links in Files.isSameFile() (win)

[Alan Bateman]

On Thu, 4 Sep 2025 00:30:52 GMT, Brian Burkhalter <bpb at openjdk.org> wrote:

> Improve handling of broken symbolic links in `Files.isSameFile` on Windows as was done on Unix by the fix of [JDK-8154364](https://bugs.openjdk.org/browse/JDK-8154364).

src/java.base/windows/classes/sun/nio/fs/WindowsFileSystemProvider.java line 445:

> 443: 
> 444:             WindowsFileAttributes attrs = WindowsFileAttributes.readAttributes(h);
> 445:             if (attrs == null || !attrs.isSymbolicLink()) {

I don't think attrs can be null here.

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PR Review Comment: https://git.openjdk.org/jdk/pull/27079#discussion_r2325074204