You like the productivity offered by the Grails framework for creating applications, along with the Groovy language. But can Groovy leverage something like OSGi ? Hamlet D'Arcy's post illustrates how to use Groovy with OSGi. Read Hamlet D'Arcy's post 'Groovy + OSGi: Gradle Makes it Easy': http://hamletdarcy.blogspot.com/2009/08/groovy-osgi-gradle-makes-it-easy.html