docs: public static List<String> getNodeListFromStringLineSeperateOrSpaceSeperate(
              String listStr, boolean removeDuplicate) {
  
          List<String> nodes = new ArrayList<String>();
  
          for (String token : listStr.split("[\\r?\\n| +]+")) {
  
              // 20131025: fix if fqdn has space in the end.
              if (token != null && !token.trim().isEmpty()) {
                  nodes.add(token.trim());
  
              }
          }
  
          if (removeDuplicate) {
              removeDuplicateNodeList(nodes);
          }
          logger.info("Target hosts size : " + nodes.size());
  
          return nodes;
  
      }