hacksoldier

public static void checkFilesForChecksum(List<File> files1, List<File> files2)
    {
        Map<String, File> files2Map = new TreeMap<String, File>();
        files2.stream().filter(p -> p.isFile()).forEach(p -> files2Map.put(checksum(p), p));

        files1.forEach(file -> {
            if (file.isDirectory())
            {
                Optional<File> opt = files2.stream().filter(p -> file.isDirectory() && p.getName().equals(file.getName())).findFirst();
                if (opt.isPresent())