Java folder creating utf inconsistency

App.java

package test;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.concurrent.Callable;
import java.util.function.Consumer;
import java.util.function.Function;


public class App {

    @FunctionalInterface
    public interface Action {
        void apply(Path path) throws IOException;
    }

    public static void main(String[] args) throws IOException {
        check("createDirectory", Files::createDirectory);
        check("mkdir", x -> x.toFile().mkdir());
    }

    private static void check(String hint, Action createDir) throws IOException {
        String name = "teŝt files";
        Path root = Path.of(name).toAbsolutePath();
        Path file = root.resolve("file1");

        Files.deleteIfExists(file);
        Files.deleteIfExists(root);
        createDir.apply(root);
        Files.createFile(file);

        Path alternative = file.toRealPath();

        System.out.printf("%s - Equals: %s, isSameFile: %s\n", hint, file.equals(alternative), Files.isSameFile(file, alternative));
    }
}

output.txt

createDirectory - Equals: true, isSameFile: true
mkdir - Equals: false, isSameFile: true