I could not belive my eyes when I have learned about GS Collections library for Java [https://github.com/goldmansachs/gs-collections https://github.com/goldmans

I could not belive my eyes when I have learned about GS Collections library for Java [https://github.com/goldmansachs/gs-collections https://github.com/goldmansachs/gs-collections]. Very nice piece of open source code with a very good documentation. I had to double check if I am looking at the right place...