Intellij Idea to use maven submodules from repo/jar instead source (to workaround Scala bug)

My maven layout is similar to:

Parent
  - ChildJ
  - ChildS

ChildJ contains Java code (code generated via the Google Protobuf Java compiler) ChildS contains Scala code

When using pure maven, I install ChildJ to the repository, and then ChildS compiles just fine.

When using idea and telling to compile module ChildS, it seems to gather the dependencies itself and passes them to the Scala compiler. Normally this should be ok, but since a subtle Java/Scala cooperation issue, the compiler bails out.

So, can I tell IntelliJ to use ChildJ either from the repository, or compile it separately using javac and pass in the class files/jar as dependency?

Note: Might be related to IntelliJ IDEA: Maven, project compilation and deployment