I got a tar file, which, when expanded, gave me an app. I launched the app (who's name I do not recall), which proceeded to download a JRE...somewhere, and gave me (I think) another app.
I launched that app, it, too, downloaded another JRE (so it said), and then launched the Ensemble app.
The Ensemble app worked fine, but none of the source code from the samples was visible. I don't know if that's a packaging issue or not.
Where did it install the JREs?