private MissionFinancer findMissionFinance(
     final MissionProcess missionProcess, final Financer financer) {
   for (final MissionFinancer missionFinancer : missionProcess.getMission().getFinancerSet()) {
     if (missionFinancer.getUnit() == financer.getUnit()) {
       return missionFinancer;
     }
   }
   return null;
 }