Java Working Directory - Wrong GDD

Lately I spend almost a day, actually a whole day to figure out jar file running directory. Actually what I needed was 'System.getProperty("user.dir")'

Ref: https://docs.oracle.com/javase/tutorial/essential/environment/sysprop.html

Here is the function first I wrote which worked across Mac, Linux and Windows 8

private static String workingDirectory() {

  File currentJavaJarFile = new File(<any>Util.class
                            .getProtectionDomain()
                            .getCodeSource()
                            .getLocation()
                            .getPath());

  String currentJavaJarFilePath = currentJavaJarFile.getAbsolutePath();

  String parentDir = currentJavaJarFile.getParent();

  String jarFilename = currentJavaJarFile.getName();

  parentDir = parentDir.toString().replace("\\", "\\\\"); //backslash directory separator error in windows

  String directory = currentJavaJarFilePath.replaceAll(parentDir.toString(), "").replace((File.separator + jarFilename), "");

  return directory;

}

Ref:http://stackoverflow.com/questions/320542/how-to-get-the-path-of-a-running-jar-file