object Main {

    var current: MainC = _

    def main(args: Array[String]) {
        MTApplication.initialize("org.mttablescreen.main.MainC")
    }


}

class MainC extends MTApplication {

    //cons
    Main.current = this

    //cons ends

    override def startUp(){
        prepare
    }

    def prepare () {...}
}

Class<?> c = Thread.currentThread().getContextClassLoader().loadClass(name);
  applet = (PApplet) c.newInstance();

Exception in thread "main" java.lang.RuntimeException: java.lang.IllegalAccessException: Class processing.core.PApplet can not access a member of class main.Main$ with modifiers "private"
    at processing.core.PApplet.runSketch(PApplet.java:9103)
    at processing.core.PApplet.main(PApplet.java:9292)
    at org.mt4j.MTApplication.initialize(MTApplication.java:311)
    at org.mt4j.MTApplication.initialize(MTApplication.java:263)
    at org.mt4j.MTApplication.initialize(MTApplication.java:254)
    at main.Main$.main(Main.scala:26)
    at main.Main.main(Main.scala)

object Main extends MTApplication {

    def main(args: Array[String]) {
        MTApplication.initialize()
        new Main().startUp()
    }

    //this method is abstarct so it MUST be implemented,
    override def startUp(){
    }

}

class Main extends MTApplication {

    override def startUp(){
       //startup here
    }
}