public StringBuilder encodeBody(StringBuilder retval){
  if (retryAfter != null)   retval.append(retryAfter);
  if (comment != null)   retval.append(SP + LPAREN + comment+ RPAREN);
  if (!parameters.isEmpty()) {
    retval.append(SEMICOLON);
    parameters.encode(retval);
  }
  return retval;
}

public StringBuilder encodeBody ( StringBuilder retval ) { if ( retryAfter != null ) retval . append ( retryAfter ) ; if ( comment != null ) retval . append ( SP + LPAREN + comment + RPAREN ) ; if ( ! parameters . isEmpty ( ) ) { retval . append ( SEMICOLON ) ; parameters . encode ( retval ) ; } return retval ; }
encode body of this into cannonical form .
