System.out.println("Removing EXAM_DATEANDTIME= " + examDateAndTime);
	public static void setExamDateAndTimeContext(HttpServletRequest request) {		Calendar examDateAndTime = Calendar.getInstance();		Long dateAndTime = null;		try {			dateAndTime =				new Long(					request.getParameter(SessionConstants.EXAM_DATEANDTIME));		} catch (NumberFormatException ex) {			examDateAndTime = (Calendar) request.getAttribute(SessionConstants.EXAM_DATEANDTIME);			if (examDateAndTime != null) {				System.out.println("Restting EXAM_DATEANDTIME= " + examDateAndTime);					request.setAttribute(SessionConstants.EXAM_DATEANDTIME, examDateAndTime);			} else {				request.removeAttribute(SessionConstants.EXAM_DATEANDTIME);				request.setAttribute(SessionConstants.EXAM_DATEANDTIME, null);				System.out.println("Removing EXAM_DATEANDTIME= " + examDateAndTime);			}		}		if (dateAndTime != null) {			examDateAndTime.setTimeInMillis(dateAndTime.longValue());			System.out.println("Setting EXAM_DATEANDTIME= " + examDateAndTime);			request.setAttribute(				SessionConstants.EXAM_DATEANDTIME,				examDateAndTime);		}	}