Escalante is an free, open-source Scala application server, based on the JBoss Application Server 7+.
Escalante is a Scala application server for applications wanting to take advantage of services provided by JBoss Application Server 7+. As well as exposing these services, Escalante provides a more friendly environment for developing and deploying applications written in popular Scala frameworks, such as Lift.
If you want to find out more about Escalante, check the project website, where you'll find documentation, links to quickstart examples to find out how to get started with a particular technology, how to contribute...etc.