A barebones Java app, which can easily be deployed to Heroku. This supports the new Getting Started with Ruby on Heroku tutorial.
Make sure you have Ruby installed. Also, install the Heroku Toolbelt.
$ git clone https://github.com/heroku/java-getting-started.git
$ cd java-getting-started
$ mvn install
$ foreman start web
Your app should now be running on localhost:5000.
$ heroku create
$ git push heroku master
$ heroku open
For more information about using Ruby on Heroku, see these Dev Center articles: