Scala maven plugin may need some care

[hepin1989]

Some projects (eg, Apache Spark) still use Maven to compile Scala, but the Scala Maven plugin is not been actively maintained.

eg: Improve performance of multimodule build by reusing compiler objects by micossow · Pull Request #720 · davidB/scala-maven-plugin · GitHub

I’m using scala-maven-plugin at work too, Scala Center can help here.