How to get the path of a running JAR file?

Answer 1

the selected answer above is not working if you run your jar by click on it from Gnome desktop environment (not from any script or terminal).

Instead, I have fond that the following solution is working everywhere:

    try {
        return URLDecoder.decode(ClassLoader.getSystemClassLoader().getResource(".").getPath(), "UTF-8");
    } catch (UnsupportedEncodingException e) {
        return "";
    }