Reflection cant get parameterized method signature?

Question

my sample:
interface Root<T>{
public void prt(T t );
interface A extends Root<String>{
public class Reflecttest {
public static void main(String[] args){
Class cl=A.class;
for (Method m:cl.getMethods()){
m.getParameterTypes();
//som reflection like above, but i cant get signature like public void prt(String str); but public void prt(Object o);
//how can i get the parameterized method signature
}

Answer 1

That information doesn't exist at runtime. It is all
erased to Object by the compiler. That's what
Generics does - safe type erasurefurther, you don't need to know, since by using reflection you're basically bypassing compile-time type safety altogether. reflection and generics have totally different intents, and don't mix well together