Learn now: https://edu.csdn.net/course/play/29000/405249?utm_source=blogtoedu
1. Upgrade of the lock
Bias lock: the thread ID is stored in the object header
2. Thread communication wait/notify
Learn now: https://edu.csdn.net/course/play/29000/405249?utm_source=blogtoedu
1. Upgrade of the lock
Bias lock: the thread ID is stored in the object header
2. Thread communication wait/notify