}
}
public static void getAllHolidays(Configuration config, Set<de.jollyday.config.Holiday> allHolidays)
{
Holidays holidays = config.getHolidays();
getAllHolidays(holidays, allHolidays);
List<Configuration> subConfigs = config.getSubConfigurations();
for (Configuration c:subConfigs) {
getAllHolidays(c, allHolidays);
}