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`thread 1`{{execute interrupt}} 命令会打印线程ID 1的栈。
Arthas支持管道,可以用 `thread 1 | grep 'main('`{{execute T2}} 查找到`main class`。
可以看到`main class`是`demo.MathGame`:
```
$ thread 1 | grep 'main('
at demo.MathGame.main(MathGame.java:17)