private static String[] convertVarsToRegex(String[] paramList) {
    String[] regexes = new String[paramList.length];
    for(int i=0; i<paramList.length; i++) {
      regexes[i] = paramList[i].replace(".", "\\." );
    }
    return regexes;
  }
@param paramList  list of parameter strings
@return list of parameter strings with "." replaced by "\."
common/src/java/org/apache/hadoop/hive/conf/HiveConf.java