As of today SwingSet3 demo is delivered as an html page with links to the demo (such as "Launch the demo" link) and links to the demo sources and project page. All these links are broken:

http://download.java.net/javadesktop/swingset3/SwingSet3.jnlp
http://swinglabs.dev.java.net/
http://swingset3.dev.java.net/

Since this is the only way to launch the app I consider it a P2 issue.