工場設計パターンの反映問題

package Reflect;

interface Imessage{
    
    
    public void send();
}

class Netmessage implements Imessage{
    
    
    @Override
    public void send() {
    
    
        System.out.println("Send Net Message.");
    }
}
class CloudMessage implements Imessage{
    
    
    @Override
    public void send() {
    
    
        System.out.println("Send Cloud Message.");
    }
}
interface Service{
    
    
    public void service();
}
class IService implements Service{
    
    
    @Override
    public void service() {
    
    
        System.out.println("service");
    }
}
class Factory{
    
    
    private Factory(){
    
    };
    public static <T> T getInstance(String className,Class<T> T) throws Exception {
    
    
        T instance=null;
        instance = (T) Class.forName(className).getDeclaredConstructor().newInstance();
        return instance;
    }
}
public class Reflect01 {
    
    
    public static void main(String[] args)  throws Exception{
    
    
        Imessage msg=Factory.getInstance("Reflection.Reflect.NetMessage",Imessage.class);
        IService msg1=Factory.getInstance("Reflect.CloudMessage",IService.class);
        msg.send();
        msg1.service();

    }
}