import java.lang.reflect.Method; // IDEA-257674 class ABC { public static void method(String arg, int num) { System.out.println(arg + " " + num); } public static void main(String[] args) throws Exception { Method m = ABC.class.getMethod("method", String.class, int.class); Object o = new Object[] {"123", 124}; m.invoke(null, (Object[]) o); } }