According to google, these are blocking the rendering of the "above-the-fold" content:
http://static.jboss.org/…theme/js/libs/jquery/jquery-1.9.1.min.js
https://www.google.com/jsapi
https://www.google.com/uds/?file=feeds&v=1
https://www.google.com/…7ddcf5992ebfc12a1f34c97b/default+en.I.js
http://hibernate.org/javascripts/bootstrap-community.min.js

There are techniques to defer the JS load. We can see if we can use these techniques.
https://developers.google.com/speed/docs/insights/BlockingJS