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Java并发常见面试题总结（上）	https://javaguide.cn/java/concurrent/java-concurrent-questions-01.html
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Java并发常见面试题总结（下）	https://javaguide.cn/java/concurrent/java-concurrent-questions-03.html
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#线程
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️什么是线程和进程
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JVM 中的线程模型是用户级的么？	https://www.zhihu.com/question/23096638/answer/29617153
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️请简要描述线程与进程的关系区别及优缺点
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	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#如何创建线程
大家都说 Java 有三种创建线程的方式！并发编程中的惊天骗局！	https://mp.weixin.qq.com/s/NspUsyhEmKnJ-4OprRFp9g
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️说说线程的生命周期和状态
挑错 \|《Java 并发编程的艺术》中关于线程状态的三处错误	https://mp.weixin.qq.com/s/0UTyrJpRKaKhkhHcQtXAiA
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HowToDoInJava	https://howtodoinJava.com/
Java Thread Life Cycle and Thread States	https://howtodoinJava.com/Java/multi-threading/Java-thread-life-cycle-and-thread-states/
Java 线程运行怎么有第六种状态？ - Dawell 的回答	https://www.zhihu.com/question/56494969/answer/154053599
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	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#什么是线程上下文切换
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	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️单核-cpu-上运行多个线程效率一定会高吗
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#使用多线程可能带来什么问题
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	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️死锁
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JMM（Java 内存模型）详解	https://javaguide.cn/java/concurrent/jmm.html
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️volatile-关键字
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Java 魔法类 Unsafe 详解 - JavaGuide - 2022	https://javaguide.cn/java/basis/unsafe.html
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#java-中-cas-是如何实现的
Java 魔法类 Unsafe 详解	https://javaguide.cn/java/basis/unsafe.html
	https://camo.githubusercontent.com/caabc544440695f90dcfeda3847e2e023d46ad28b59fefb0b40c1935f82e87ab/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f4a55432545352538452539462545352541442539302545372542312542422545362541362538322545382541372538382e706e67
Atomic 原子类总结	https://javaguide.cn/java/concurrent/atomic-classes.html
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#cas-算法存在哪些问题
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#aba-问题
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#循环时间长开销大
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#只能保证一个共享变量的原子操作
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#synchronized-关键字
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#synchronized-是什么有什么用
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#如何使用-synchronized
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#构造方法可以用-synchronized-修饰么
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️synchronized-底层原理了解吗
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#synchronized-同步语句块的情况
	https://camo.githubusercontent.com/a480e422b9183d27906adc6d4199b4f15bded8a841be4fd87dbc8d5202c388f5/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f73796e6368726f6e697a65642d7072696e6369706c652e706e67
ObjectMonitor	https://github.com/openjdk-mirror/jdk7u-hotspot/blob/50bdefc3afe944ca74c3093e7448d6b889cd20d1/src/share/vm/runtime/objectMonitor.cpp
	https://camo.githubusercontent.com/1077a37001e7e90f84c90efb5e48c8b167e1274dead662ed589bd2881c851c6d/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f73796e6368726f6e697a65642d6765742d6c6f636b2d636f64652d626c6f636b2e706e67
	https://camo.githubusercontent.com/21fef71a9fbc14edbe4a5d273b58fab76d600947533d4dcabfdd784a56c668f8/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f73796e6368726f6e697a65642d72656c656173652d6c6f636b2d626c6f636b2e706e67
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#synchronized-修饰方法的情况
	https://camo.githubusercontent.com/f817922325229e3f24dbf49f1be6fa816c3095c9d31f866ab497914b8b411879/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f73796e6368726f6e697a6564254535253835254233254539253934254145254535254144253937254535253845253946254537253930253836322e706e67
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#总结
Java 锁与线程的那些事 - 有赞技术团队	https://tech.youzan.com/javasuo-yu-xian-cheng-de-na-xie-shi/
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#jdk16-之后的-synchronized-底层做了哪些优化锁升级原理了解吗
浅析 synchronized 锁升级的原理与实现	https://www.cnblogs.com/star95/p/17542850.html
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#synchronized-的偏向锁为什么被废弃了
JEP 374: Deprecate and Disable Biased Locking	https://openjdk.org/jeps/374
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️synchronized-和-volatile-有什么区别
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#reentrantlock
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#reentrantlock-是什么
	https://camo.githubusercontent.com/2f1d8d25cf472b1d5e3c1fe72df313f5bee5c95446476a761bf4b0b951902968/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f7265656e7472616e746c6f636b2d636c6173732d6469616772616d2e706e67
AQS 详解	https://javaguide.cn/java/concurrent/aqs.html
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#公平锁和非公平锁有什么区别
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️synchronized-和-reentrantlock-有什么区别
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#两者都是可重入锁
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#synchronized-依赖于-jvm-而-reentrantlock-依赖于-api
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#reentrantlock-比-synchronized-增加了一些高级功能
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#可中断锁和不可中断锁有什么区别
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#reentrantreadwritelock
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#reentrantreadwritelock-是什么
	https://camo.githubusercontent.com/8749c0acd96f5a13ea260d8ef0ddf76277170073e72c6486cebcc8f175b8378a/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f7265656e7472616e747265616477726974656c6f636b2d636c6173732d6469616772616d2e706e67
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#reentrantreadwritelock-适合什么场景
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#共享锁和独占锁有什么区别
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#线程持有读锁还能获取写锁吗
聊聊 Java 的几把 JVM 级锁 - 阿里巴巴中间件	https://mp.weixin.qq.com/s/h3VIUyH9L0v14MrQJiiDbw
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#读锁为什么不能升级为写锁
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#threadlocal
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#threadlocal-有什么用
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️threadlocal-原理了解吗
	https://camo.githubusercontent.com/128d3dcee34b5589876ad0e0eea8316e6543aa83fa8562b4b2316718642f8d4b/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f7468726561646c6f63616c2d646174612d7374727563747572652e706e67
	https://camo.githubusercontent.com/89216bb7bb8d28953ecdf02ef39a0839d83ec754fd6aa7ea1ff796cd517137cb/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f7468726561642d6c6f63616c2d696e6e65722d636c6173732e706e67
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️threadlocal-内存泄露问题是怎么导致的
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️如何跨线程传递-threadlocal-的值
https://github.com/alibaba/transmittable-thread-local	https://github.com/alibaba/transmittable-thread-local
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#inheritablethreadlocal-原理
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#transmittablethreadlocal-原理
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#应用场景
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#线程池
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#什么是线程池
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️为什么要用线程池
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#如何创建线程池
	https://camo.githubusercontent.com/d8d7ed4fddcf38e62ffe2928d103e7d760381f28833438210266cc964e4217bd/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f746872656164706f6f6c6578656375746f722d636f6e73747275746f72732e706e67
	https://camo.githubusercontent.com/036e2650c5f7873b2c045230d0ad69d6a8a8b92fb3683a69e51626b8fe1a2f8d/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f6578656375746f72732d6e65772d7468726561642d706f6f6c2d6d6574686f64732e706e67
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️为什么不推荐使用内置线程池
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️线程池常见参数有哪些如何解释
	https://camo.githubusercontent.com/5ef838172f4fdb9e40aa2c6d8e33440b594966e7b16256c7474aae93896582cb/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f72656c6174696f6e736869702d6265747765656e2d7468726561642d706f6f6c2d706172616d65746572732e706e67
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#线程池的核心线程会被回收吗
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#核心线程空闲时处于什么状态
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️线程池的拒绝策略有哪些
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#如果不允许丢弃任务应该选择哪个拒绝策略
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#callerrunspolicy-拒绝策略有什么风险如何解决
	https://camo.githubusercontent.com/0f60f8dbef54a5e17b20f00b0e54295b577e8bdf0e831c37ab12e9dfd3d5269f/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f746872656164706f6f6c2d72656a6563742d322d746872656164706f6f6c2d72656a6563742d30312e706e67
	https://camo.githubusercontent.com/3b87e4021ae7db4f8dea8734800c775e7d7e77fd41b6efc8a25ad1ff712797da/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f746872656164706f6f6c2d72656a6563742d322d746872656164706f6f6c2d72656a6563742d30322e706e67
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#线程池常用的阻塞队列有哪些
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️线程池处理任务的流程了解吗
	https://camo.githubusercontent.com/42da605aaa31a0a11cdd2d01725e25ac4f93f7b3adebf4a6059069db1c6bb2ae/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f7468726561642d706f6f6c2d7072696e6369706c652e706e67
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️线程池中线程异常后销毁还是复用
线程池中线程异常后：销毁还是复用？ - 京东技术	https://mp.weixin.qq.com/s/9ODjdUU-EwQFF5PrnzOGfw
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️如何给线程池命名
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#如何设定线程池的大小
issue#1737	https://github.com/Snailclimb/JavaGuide/issues/1737
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️如何动态修改线程池的参数
《Java 线程池实现原理及其在美团业务中的实践》	https://tech.meituan.com/2020/04/02/java-pooling-pratice-in-meituan.html
Java 线程池详解	https://javaguide.cn/java/concurrent/java-thread-pool-summary.html
	https://camo.githubusercontent.com/e6ab5c7d3734c8c22057df6974bdaa438f1df0df901a25656c9ca8a0314730df/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f746872656164706f6f6c6578656375746f722d6d6574686f64732e706e67
	https://camo.githubusercontent.com/86cfb2c079fe400b5475e26d6b856714df8f23f9567fc41fb0c241749e7908e1/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f6d65697475616e2d64796e616d6963616c6c792d636f6e6669677572696e672d7468726561642d706f6f6c2d706172616d65746572732e706e67
《后端面试高频系统设计&场景题》	https://javaguide.cn/zhuanlan/back-end-interview-high-frequency-system-design-and-scenario-questions.html
	https://camo.githubusercontent.com/bbc8e0a8f60d22378708b596bd99ec6e983d03598a60effa72ea97b79159acf9/68747470733a2f2f6f73732e6a61766167756964652e636e2f78696e677169752f6261636b2d656e642d696e746572766965772d686967682d6672657175656e63792d73797374656d2d64657369676e2d616e642d7363656e6172696f2d7175657374696f6e732d66656e676d69616e2e706e67
Hippo4j	https://github.com/opengoofy/hippo4j
Dynamic TP	https://github.com/dromara/dynamic-tp
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️如何设计一个能够根据任务的优先级来执行的线程池
	https://camo.githubusercontent.com/3182fdd8bbc6affb67682a49c1c717971e4a73aefd1d75e84be52f652ff5e1a8/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f636f6d6d6f6e2d706172616d65746572732d6f662d746872656164706f6f6c2d776f726b71756575652e6a7067
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#future
CompletableFuture 详解	https://javaguide.cn/java/concurrent/completablefuture-intro.html
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#future-类有什么用
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#callable-和-future-有什么关系
	https://camo.githubusercontent.com/48a5847a4cb08e81c3d2d61fdba287023b676bf57dc980b5c3819013a86a433c/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f636f6d706c657461626c656675747572652d636c6173732d6469616772616d2e6a7067
Java 是如何实现 Future 模式的？万字详解！	https://juejin.cn/post/6844904199625375757
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#completablefuture-类有什么用
	https://camo.githubusercontent.com/48a5847a4cb08e81c3d2d61fdba287023b676bf57dc980b5c3819013a86a433c/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f636f6d706c657461626c656675747572652d636c6173732d6469616772616d2e6a7067
	https://camo.githubusercontent.com/6d2dec13023c6a55b1a53b278c92815c1d0aa943adfc1dfafc7ddf72c3f6d1ea/68747470733a2f2f6f73732e6a61766167756964652e636e2f6a61766167756964652f696d6167652d32303231303930323039333032363035392e706e67
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️一个任务需要依赖另外两个任务执行完之后再执行怎么设计
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️使用-completablefuture有一个任务失败如何处理异常
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️在使用-completablefuture-的时候为什么要自定义线程池
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#aqs
AQS 详解	https://javaguide.cn/java/concurrent/aqs.html
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#aqs-是什么
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#️aqs-的原理是什么
	https://camo.githubusercontent.com/3068a96ec07489421c1885996d4bfbc86828b94050b72405e1284cd60337e808/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6f70656e2d736f757263652d70726f6a6563742f636c682d6c6f636b2d71756575652d7374727563747572652e706e67
	https://camo.githubusercontent.com/d93f919f3b198a4ea95ea647095f52954586e1fb7100911e28a1e63ae5d967d4/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f636c682d71756575652d7374727563747572652d6269616e74692e706e67
	https://camo.githubusercontent.com/7ebc1659519d5621c7da081bf3e52b140459f434de08ea214c5873d0cff4c5a1/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f636f6e63757272656e742f636c682d71756575652d73746174652e706e67
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#semaphore-有什么用
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#semaphore-的原理是什么
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#countdownlatch-有什么用
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#countdownlatch-的原理是什么
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#用过-countdownlatch-么什么场景下用的
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#cyclicbarrier-有什么用
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#cyclicbarrier-的原理是什么
	https://github.com/dujiang1126134506/JavaGuide-Interview/blob/master/docs/java/java-concurrent.md#虚拟线程
虚拟线程常见问题总结	https://javaguide.cn/java/concurrent/virtual-thread.html
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