1、guava
guava cache:
http://blog.csdn.net/Desilting/article/category/1641415
http://blog.csdn.net/Desilting/article/details/11803395
http://www.cnblogs.com/langtianya/p/4520291.html
2、zookeeper
http://www.ibm.com/developerworks/cn/opensource/os-cn-zookeeper/
3、一致性hash
4、java 引用
AtomicReferenceFieldUpdater 和 AtomicReferenceArray
5、dubbo
6、elk
http://my.oschina.net/itblog/blog/547250
7、spring cache
http://www.cnblogs.com/rollenholt/p/4202631.html
http://www.iteye.com/topic/1122402
http://sishuok.com/forum/posts/list/7952.html
8、es
https://github.com/zhangkaitao/es
9、红黑树
10、hashmap并发死循环的发生场景
11、AQS框架
12、Disruptor
http://ifeve.com/disruptor/
13、类加载器
14、map系列,WeakHashmap,ConcurrentSkipListMap,ConcurrentHashMap
15、fork/join框架