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Synchronize 关键字原理 | crossoverJie's Blog
source link: https://crossoverjie.top/2018/01/14/Synchronize/?
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众所周知 Synchronize 关键字是解决并发问题常用解决方案，有以下三种使用方式:同步普通方法，锁的是当前对象。同步静态方法，锁的是当前 Class 对象。同步块，锁的是 {} 中的对象。实现原理：JVM 是通过进入、退出对象监视器( Monitor )来实现对方法、同步块的同步的。具体实现是在编译之后在同步方法调用前加入一个 monitor.enter 指令，在退出方法和异
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