I'm trying to work with Hydra library (http://sourceforge.net/projects/hydra-mcmc/) in my NetBeans IDE, but it seems like IDE ''cant see'' the library at all. I've made a screen shot:
I've imported Hydra .jar file by clicking on "Libraries" and "Add a Jar". The packages are properly listed on the right (you can see it on the picture).
How to resolve this problem?