Overriding static method produces an error

Question

In the B class I concealed (override) static method foo() from A class.
So why

A object = new B();
object.foo();

outputs 'A', but not 'B'?

public class Test1
{
    public static void main(String[] args)
    {
        A object = new B();
        object.foo();
    }
}

class A
{
    public static void foo()
    {
        System.out.println("A");
    }
}

class B extends A
{
    public static void foo()
    {
        System.out.println("B");
    }
}