public static ValidReaderWriteIdList fromValue(String value) {
    ValidReaderWriteIdList rdWrtList = new ValidReaderWriteIdList();
    rdWrtList.readFromString(value);
    return rdWrtList;
  }
Used if there are no open write ids in the snapshot.
storage-api/src/java/org/apache/hadoop/hive/common/ValidReaderWriteIdList.java