【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();
}
}
}
}
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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