http://openhft.net/
http://maven.outofmemory.cn/net.openhft/chronicle-map/2.0.13b/
http://search.maven.org/#search|ga|1|g%3A%22net.openhft%22%20AND%20a%3A%22chronicle-map%22
freechat
http://www.oschina.net/p/jfreechart
原文：http://my.oschina.net/phacks/blog/363095