(fs) FileStore does not support DFS file share paths (win)

ADDITIONAL SYSTEM INFORMATION :
Windows 11 Enterprise
Version 22H2
OS build 22621.3593
Experience Windows Feature Experience Pack 1000.22700.1003.0

JDK 21.0.3

A DESCRIPTION OF THE PROBLEM :
I have a network drive \\foo\bar\baz mounted to drive letter O.

It seems I get the correct results when I use the FileStore API with "O:\\" as the path, and incorrect results when using "\\foo\bar\baz" as the path.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Mount a network drive by UNC path:

net use o: \\foo\bar\baz /persist:yes


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
I expect the same values in both cases.

Absolute path | Usable space (bytes) | Total space (bytes) | File store name
O:\ | 718622703616 | 4612657508352 | MX Prodn
\\foo\bar\baz | 718622703616 | 4612657508352 | MX Prodn

ACTUAL -
Absolute path | Usable space (bytes) | Total space (bytes) | File store name
O:\ | 718622703616 | 4612657508352 | MX Prodn
\\foo\bar\baz | 56672243712 | 81744883712 |


---------- BEGIN SOURCE ----------
import java.nio.file.FileStore;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.List;

class Scratch {

    private static final String FORMAT = "%-40s | %20s | %20s | %15s%n";

    public static void main(String[] args) {

        final List<String> paths = List.of(
            "O:\\",
            "\\\\foo\\bar\\baz"
        );

        System.out.printf(FORMAT,
                "Absolute path",
                "Usable space (bytes)", "Total space (bytes)",
                "File store name");

        paths.forEach(Scratch::processPath);
    }

        private static void processPath(String pathStr) {
        try {
            Path path = Paths.get(pathStr);
            FileStore fileStore = Files.getFileStore(path);
            System.out.printf(FORMAT,
                    pathStr,
                    fileStore.getUsableSpace(),
                    fileStore.getTotalSpace(),
                    fileStore.name());
        } catch (Exception e) {
            System.out.printf("Unable to get file store for '%s': %s%n", pathStr, e.getMessage());
        }
    }
}
---------- END SOURCE ----------

FREQUENCY : always