Optimizer-jsprit is the link between Mapotempo-Optimizer API and Mapotempo-Jsprit. Look at tag ~~ on each project for the lastest version. Optimize jsprit .jar needs to be generated using the associated custom source of Jsprit.
For more details consult the Run.java file
Most of the problem infos must be defined in the problem xml schema defined into the jsprit.io resources