hash - favorer/record GitHub Wiki
jenkins hash
http://wangjunle23.blog.163.com/blog/static/11783817120138863910800/
http://blog.csdn.net/guangcigeyun/article/details/8278346
http://www.cnblogs.com/cm4j/p/cc_1.html
http://www.javaspecialists.co.za/archive/Issue054.html
http://www.goworkday.com/2010/03/19/single-word-wangjenkins-hash-concurrenthashmap/