Class<?> aClass = anInstance.getClass();
        Method fun = null;
        try {
            fun = aClass.getMethod("method", new Class<?>[] {Integer.class, String.class});
        } catch (SecurityException ex) {
            ex.printStackTrace();
        } catch (NoSuchMethodException ex) {
            ex.printStackTrace();
        }
        try {
            fun.invoke(anInstance, new Object[] {new Integer(3), "billjoy"});
        } catch (IllegalArgumentException ex) {
            ex.printStackTrace();
        } catch (InvocationTargetException ex) {
            ex.printStackTrace();
        } catch (IllegalAccessException ex) {
            ex.printStackTrace();
        }