public StringBuilder encodeBody(StringBuilder retval){
  retval.append(LESS_THAN);
  errorInfo.encode(retval);
  retval.append(GREATER_THAN);
  if (!parameters.isEmpty()) {
    retval.append(SEMICOLON);
    parameters.encode(retval);
  }
  return retval;
}

public StringBuilder encodeBody ( StringBuilder retval ) { retval . append ( LESS_THAN ) ; errorInfo . encode ( retval ) ; retval . append ( GREATER_THAN ) ; if ( ! parameters . isEmpty ( ) ) { retval . append ( SEMICOLON ) ; parameters . encode ( retval ) ; } return retval ; }
encode into canonical form .
