docs: protected void initServices() {
      initService(repositoryService);
      initService(runtimeService);
      initService(historyService);
      initService(identityService);
      initService(taskService);
      initService(formService);
      initService(managementService);
      initService(authorizationService);
      initService(caseService);
      initService(filterService);
      initService(externalTaskService);
      initService(decisionService);
      initService(optimizeService);
    }