[12.1 CheckPoints介绍](12.1CheckPoints%E4%BB%8B%E7%BB%8D.md) [12.2 ThreadList和ThreadState](12.2ThreadList%E5%92%8CThreadState.md) [12.3 线程同步相关知识](12.3%E7%BA%BF%E7%A8%8B%E5%90%8C%E6%AD%A5%E7%9B%B8%E5%85%B3%E7%9F%A5%E8%AF%86.md) [12.4 volatile成员的读写](12.4volatile%E6%88%90%E5%91%98%E7%9A%84%E8%AF%BB%E5%86%99.md) [12.5 信号处理](12.5%E4%BF%A1%E5%8F%B7%E5%A4%84%E7%90%86.md) [12.6 总结](12.6%E6%80%BB%E7%BB%93.md)