public static void addToParserTable(String headerName,Class<? extends HeaderParser> parserClass){
  parserTable.put(headerName.toLowerCase(),parserClass);
}

public static void addToParserTable ( String headerName , Class < ? extends HeaderParser > parserClass ) { parserTable . put ( headerName . toLowerCase ( ) , parserClass ) ; }
this method is added to support parser extensibility .
