code: private static boolean bucketHasFastForwardMap(String bucketName, ClusterConfig clusterConfig) {
          if (bucketName == null) {
              return false;
          }
          BucketConfig bucketConfig = clusterConfig.bucketConfig(bucketName);
          return bucketConfig != null && bucketConfig.hasFastForwardMap();
      }
docs: Helper method to check if the current given bucket contains a fast forward map.
  
  @param bucketName the name of the bucket.
  @param clusterConfig the current cluster configuration.
  @return true if it has a ffwd-map, false otherwise.