code: AddIfStartupLeader addIfStartupLeader(Object... objects) {
      if (addIfStartupLeader == null) {
        this.addIfStartupLeader = new AddIfStartupLeader(getWebServer().isStartupLeader());
      }
      addIfStartupLeader.ifAdd(objects);
      return addIfStartupLeader;
    }
docs: Add a component to container only if the web server is startup leader.
  
  @throws IllegalStateException if called from PlatformLevel1, when cluster settings are not loaded