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public static Date convertAAAASSJToDate(Integer aaaassj) {
 
		if (aaaassj == null) {
			return null;
		}
 
		String toConvert = aaaassj.toString();
 
		if (toConvert.length() < 6) {
			return null;
		}
 
		String annee = toConvert.substring(0, 4);
		String semaine = toConvert.substring(4, 6);
		String jour = "1";
 
		if (toConvert.length() > 6) {
			jour = toConvert.substring(6, 7);
		}
 
		GregorianCalendar calendar = new GregorianCalendar();
		calendar.setFirstDayOfWeek(Calendar.MONDAY);
		calendar.setMinimalDaysInFirstWeek(4);
 
		calendar.set(Calendar.YEAR, Integer.parseInt(annee));
		calendar.set(Calendar.WEEK_OF_YEAR, Integer.parseInt(semaine));
		calendar.set(Calendar.DAY_OF_WEEK, Integer.parseInt(jour));
 
		return calendar.getTime();
	} | 
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