We need two Maven artifacts, with artifactId:s log4j-api-scala_2.10 and log4j-api-scala_2.11. They could use the same source, but needs to be compiled separately and have different dependencies on scala-library and scala-reflect. The Scala build tool SBT can do this from the same source, but I don't know any way to do it with Maven.
I guess that deploying the SNAPSHOTs would work, good idea.
