code: private ACLProvider getDefaultAclProvider() {
          return new ACLProvider() {
              @Override
              public List<ACL> getDefaultAcl() {
                  return ZooDefs.Ids.CREATOR_ALL_ACL;
              }
  
              @Override
              public List<ACL> getAclForPath(String path) {
                  return ZooDefs.Ids.CREATOR_ALL_ACL;
              }
          };
      }
docs: 获取默认的AclProvider
  @return