private static void visitSecondToken(int repetitions, JQueryDateTimePatternBuilder builder) {
        if (repetitions == 1) {
            builder.appendSecondNoLeadingZeros();
        }
        else {
            builder.appendSecondWithLeadingZeros();
        }
    }
Second token 's' and 'ss'. 's' is the second without leading zeros, more than
one 's' is the second with leading zeros (two digits).
primefaces/src/main/java/org/primefaces/convert/CombinedDateTimePatternTokenVisitor.java