https://www.ibm.com/developerworks/cn/java/j-jtp04186/
https://www.ibm.com/developerworks/cn/java/java-lo-concurrenthashmap/
http://www.cnblogs.com/Mainz/p/3546347.html
http://novoland.github.io/%E5%B9%B6%E5%8F%91/2014/07/26/Lock-Free%20%E7%AE%97%E6%B3%95.html
原文：http://www.cnblogs.com/chn58/p/6618928.html