public void moveEntity(double mx, double my, double mz) {
        try{
            moveEntityCompat(this,mx,my,mz);
        } catch( ClassNotFoundException e ) {
            System.out.println("Error ZMod.flyHandle does not exist, is Zombe Mod installed?");
        }
    }
    private void moveEntityCompat(**** self, double mx, double my, double mz)
      throws ClassNotFoundException
    {
        ZMod.flyHandle(this, mx, my, mz);
    }