先到先学！Alibaba甩出第四次更新的JDK源码高级笔记（终极版）

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"作为Java开发者，面试肯定被问过多线程。对于它，大多数好兄弟面试前都是看看八股文背背面试题以为就OK了；殊不知现在的面试官都是针对一个点往深了问，你要是不懂其中原理，面试就挂了。可能你知道什么是进程什么是线程，但面试官要是问你进程之间是如何通讯的？ConcurrentHashMap 和 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