IPlanner planner =
new ExternalPlanner(
new ItSimplePlannerExecutor(this._plannerElement, plannersDirectory)
);
IPlanningResult result = planner.plan(domainProvider, problemProvider);
if(result.isSuccess() == false){
System.out.println("Planning4JHandler: No solution found.");
return instructions;
}else{
translateInstructions(result.getPlan(), map, instructions);