code: @SuppressFBWarnings("PRMC_POSSIBLY_REDUNDANT_METHOD_CALLS")
      public void initServiceRegistryIfNecessary() {
          val size = this.serviceRegistry.size();
          LOGGER.trace("Service registry contains [{}] service definition(s)", size);
  
          LOGGER.warn("Service registry [{}] will be auto-initialized from JSON service definitions. "
              + "This behavior is only useful for testing purposes and MAY NOT be appropriate for production. "
              + "Consider turning off this behavior via the setting [cas.serviceRegistry.initFromJson=false] "
              + "and explicitly register definitions in the services registry.", this.serviceRegistry.getName());
  
          val servicesLoaded = this.jsonServiceRegistry.load();
          LOGGER.debug("Loaded JSON services are [{}]", servicesLoaded.stream().map(RegisteredService::getName).collect(Collectors.joining(",")));
  
          servicesLoaded
              .forEach(r -> {
                  if (!findExistingMatchForService(r)) {
                      LOGGER.debug("Initializing service registry with the [{}] JSON service definition...", r.getName());
                      this.serviceRegistry.save(r);
                  }
              });
          this.servicesManager.load();
          LOGGER.info("Service registry [{}] contains [{}] service definitions", this.serviceRegistry.getName(), this.servicesManager.count());
  
      }
docs: Init service registry if necessary.