This project can be deployed on Heroku to give the JDK 9 JShell a spin.
Install the Heroku Toolbelt then run these commands:
$ git clone https://github.com/jkutner/jshell-demo
$ cd jshell-demo
$ heroku create
$ git push heroku master
$ heroku run jshell
Running `jshell` attached to terminal... up, run.7933
Aug 23, 2015 5:32:46 PM java.util.prefs.FileSystemPreferences$1 run
INFO: Created user preferences directory.
| Welcome to JShell -- Version 0.819
| Type /help for help
->
Here is an InfoQ article with some suggestions on what commands to try.
Happy shelling!