public class JavaNineLaunch {
    public static void main(String[] args) {
        try {
            new JavaNineLaunch().start(args);
        } catch (Exception e) {
            System.out.println(e);
        }
    }
    public void start(String[] args) throws Exception {
        Launch l = (Launch) Class.forName("net.minecraft.launchwrapper.Launch").newInstance();
        Method m = Launch.class.getDeclaredMethod("launch", String[].class);
        m.setAccessible(true); //Bypass private modifyer. EDIT: No work

        if (getClass().getClassLoader() instanceof URLClassLoader) {
            final URLClassLoader ucl = (URLClassLoader) getClass().getClassLoader();
            l.classLoader = new LaunchClassLoader(ucl.getURLs());
        } else {
           l.classLoader = new LaunchClassLoader(getURLs());
        }
        l.blackboard = new HashMap<String,Object>();
        Thread.currentThread().setContextClassLoader(l.classLoader);

        m.invoke(l, args);
    }

    private URL[] getURLs() {
         String cp = System.getProperty("java.class.path");
         String[] elements = cp.split(File.pathSeparator);
         if (elements.length == 0) elements = new String[] {""};
         URL[] urls = new URL[elements.length];
         for (int i = 0; i < elements.length; i++) {
             try {
                 URL url = new File(elements[i]).toURI().toURL();
                 urls[i] = url;
             } catch (MalformedURLException ignore) {/*Ignore*/}
         }
         return urls;
     }
}