In the same way that Rails is providing an interractive console right into the
container, I do think that bundling BeanShell (JSR-274)
Doing so, we would access live server context to test code before doing it for
unit testing purposes. It is also usefull to alter data without having a direct
access to the database.
The is a big step to go to agile deployment and reduce the dev cycle of Java EE.