Do Upcasting effects on Static methods?

Why It calls base class method when we declare method as static in base as well as in derive class and do upcasting.

class Base
{
static void show(){
System.out.println("Base class....");
}
}
class Derive extends Base
{
static void show(){
System.out.println("Drive class....");
}//method hidding.....
public static void main(String[] args) 
{
Base b= new Derive();
b.show(); 
}
}