Hi Patrice, Scala libraries are built for a specific version of the runtime (different versions of the runtime aren't fully compatible) Here scala-parser-combinators was built with Scala 2.11 and the jar installed in /usr/share/java contains the scala version to make this clear. So you simply have to modify the find_jar directive of your wrapper script and look for scala-parser-combinator_2.11 instead of scala-parser-combinator.
Emmanuel Bourg
