Student.class

public class Student{
    private volatile String status;
    
    public boolean compareAndSetStatus(String expect, String update) {
        return AtomicReferenceFieldUpdater
                .newUpdater(Student.class, String.class, "status")
                .compareAndSet(this, expect, update);
    }
}

经测试 AtomicReferenceFieldUpdater 无法避免 ABA 问题