private void printRoundInfo(PrintWriter xout,
                                int roundNumber,
                                List<ClassSymbol> topLevelClasses,
                                Set<TypeElement> annotationsPresent,
                                boolean lastRound) {
        if (printRounds || verbose) {
            xout.println(Log.getLocalizedString("x.print.rounds",
                                                roundNumber,
                                                "{" + topLevelClasses.toString(", ") + "}",
                                                annotationsPresent,
                                                lastRound));
        }
    }