I have an application where I would like to have mixed Java and Scala source (actually its migrating a java app to scala - but a bit at a time).
I can make this wor
I solved this some time ago by having one Maven module written in Scala and the other in Java. But since Scala and Java can cross depend on one another (Java -> Scala -> Java or the other way around), then this is something very desirable without multi module projects.
There is work underway in solving this, you can read about it here and a new version of the maven-scala-plugin will be released soon.