Java static 执行顺序

package com.rainy.main;

import java.util.ArrayList;
import java.util.List;

public class Test extends A {

static List<Object> p = new ArrayList<Object>();

static {
p.add(new Object());
}

public static void main(String[] args) {
System.out.println(p.size());
System.out.println(l.size());
}

}

class A {
static List<Object> l = new ArrayList<Object>();

static {
l.add(new Object());
}
}