HashSet底层问题,求解惑

问题背景:HashSet结构内置的数组table中存储的一条链表或者一颗红黑树上的节点的哈希值是一样的吗

代码

        HashSet hashSet = new HashSet();
        Person p1 = new Person(1001, "AA");
        Person p2 = new Person(1002, "BB");
        hashSet.add(p1);
        hashSet.add(p2);
        p1.name = "CC";
        hashSet.remove(p1);
        System.out.println(hashSet);
        hashSet.add(new Person(1001, "CC"));
        System.out.println(hashSet);
        hashSet.add(new Person(1001, "AA"));
        System.out.println(hashSet);

//其中Person类重写了hashCode方法和equals方法
class Person {
    int id;
    String name;
    public Person_(int id, String name) {
        this.id = id;
        this.name = name;
    }
    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (!(o instanceof Person_)) return false;
        Person_ person_ = (Person_) o;
        return id == person_.id &&
                Objects.equals(name, person_.name);
    }
    @Override
    public int hashCode() {
        return Objects.hash(id, name);
    }
    @Override
    public String toString() {
        return "Person_{" +
                "id=" + id +
                ", name='" + name + '\'' +
                '}';
    }
}

运行结果:
debug查看table数组,发现同一条链表的哈希值可以不一样

img

两个不一样的值取模求值结果也可能是一样的,例如:
10%5 = 0
5%5 = 0