OSGi, Scala, maven, and git

I've noticed a few people are integrating OSGi and Scala. In particular Heiko Seeberger is building OSGi bundles for the Scala language plus various utility modules and DSLs. Then he's using maven for build and git for version control.

I am, of course, a fan of OSGi. I'm rapidly warming to git. But I'm not sure Scala and maven really solve more problems than they introduce. I don't want to dwell on maven as I'm not sure other build systems are really much better, but Scala does raise lots of question in my mind.

Many years ago, I was keen to adopt new technology and some combinations worked really well while others just seemed to multiply the overall complexity. One particular combination was the use of Z specification language embedded using literate programming in a subset of our target programming language with proof rules. It was possible to create proof trees of simple specifications refined to the target language. The main problem was that there were very few people who could acquire the skills necessary to master the combined technology.

Well, perhaps that was an extreme example and maybe it was doomed from the start, but I have a niggling doubt about the size of the Scala language.

So I'd be delighted to understand what features of OSGi and Scala work well together (and what features are simply best not used as part of this combination). In particular, are there any particular problems which are significantly simplified by combining OSGi and Scala which cannot be attacked very well using OSGi (and Java) or Scala alone?

Postscript

This document partially answers my questions. Scala makes it easy to write a DSL for handling OSGi services simply.

This is similar to the kind of function provided by Spring DM (or, equivalently, the OSGi Blueprint service).

The main difference is that there is still some minimal clutter in the Scala program whereas with Spring DM POJOs are configured in XML to provide and use OSGi services. I suppose the Scala approach favours sophisticated use of OSGi services, but this is not the norm in typical enterprise applications.