【线程死锁】
原因：两个线程相互等待被对方锁定的资源
代码模拟：
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public class deadlock { public static void main(string[] args) { object obj = new object(); object obj1 = new object(); deadlockthread1 d1 = new deadlockthread1(obj, obj1); deadlockthread2 d2 = new deadlockthread2(obj, obj1); new thread(d1,"线程1").start(); new thread(d2,"线程2").start(); }}class deadlockthread1 implements runnable { private object obj; private object obj1; public deadlockthread1(object obj, object obj1) { this.obj = obj; this.obj1 = obj1; } @override public void run() { synchronized (obj) { //deadlockthread1锁定obj对象 try { thread.sleep(1000); synchronized (obj1) { //等待锁定obj1对象，obj对象已被deadlockthread2锁定 obj1.getclass(); } } catch (interruptedexception e) { e.printstacktrace(); } } }}class deadlockthread2 implements runnable { private object obj; private object obj1; public deadlockthread2(object obj, object obj1) { this.obj = obj; this.obj1 = obj1; } @override public void run() { synchronized (obj1) { //deadlockthread2锁定obj2对象 try { thread.sleep(1000); synchronized (obj) { //等待锁定obj对象，obj对象已被deadlockthread1锁定 obj.getclass(); } } catch (interruptedexception e) { e.printstacktrace(); } } }} |
查看方式：
1、【cmd】下输入【jconsole】
2、选择测试线程并点击右下角【连接】，左上角选择【线程】，左下角选择【检测死锁】
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原文链接：http://blog.csdn.net/rickiyeat/article/details/52558047
