1.java代码分享，深度开源
https://www.open-open.com/code/?sort=active&lang=1&catalog=0
2.并发编程网
3.蚂蚁金服面试
https://mp.weixin.qq.com/s/-MzmdxqukOZ6rUta9nkGGw
4.跳动、腾讯面试后台
https://juejin.im/post/5cf7ea91e51d4576bc1a0dc2
5.java8常用新特性总结
https://juejin.im/post/5cd97ccb518825686b1209ea
原文：https://www.cnblogs.com/LoveMyBottle/p/11682046.html