docs: @Reference(service = WsLocationAdmin.class,
                 policy = ReferencePolicy.DYNAMIC,
                 cardinality = ReferenceCardinality.MANDATORY)
      protected void setLocationService(WsLocationAdmin locationService) {
          this.locationService = locationService;
          if (restJMXAddressWorkareaFile == null) {
              restJMXAddressWorkareaFile = createJMXWorkAreaResource(locationService);
          }
          if (restJMXAddressStateFile == null) {
              restJMXAddressStateFile = createJMXStateResource(locationService);
          }
      }