code: public List<SyncPointInfo> getSyncPathList() {
      List<SyncPointInfo> returnList = new ArrayList<>();
      for (AlluxioURI uri: mSyncPathList) {
        SyncPointInfo.SyncStatus status;
        Future<?> syncStatus = mSyncPathStatus.get(uri);
        if (syncStatus == null) {
          status = SyncPointInfo.SyncStatus.NOT_INITIALLY_SYNCED;
        } else if (syncStatus.isDone()) {
          status = SyncPointInfo.SyncStatus.INITIALLY_SYNCED;
        } else {
          status = SyncPointInfo.SyncStatus.SYNCING;
        }
        returnList.add(new SyncPointInfo(uri, status));
      }
      return returnList;
    }
docs: Get the sync point list.
  
  @return a list of URIs (sync points)