StateMachineContext ThreadLocal 内存泄漏风险

hekailiang / squirrel

squirrel-foundation is a State Machine library, which provided a lightweight, easy use, type safe and programmable state machine implementation for Java.

http://hekailiang.github.io/squirrel/

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StateMachineContext ThreadLocal 内存泄漏风险 #115

Closed xunyi-ko closed 4 years ago

xunyi-ko commented 4 years ago

StateMachineContext 中使用了 ThreadLocal<Stack>，在每次调用fire时，会为当前线程创建一个Stack。而如果当前线程结束后，Stack并不会被销毁。因此如果有大量的线程创建、销毁时，Stack会一直累积下去，越来越多