static final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");	@InitBinder	protected void initBinder(WebDataBinder binder) throws Exception {		// bind empty strings as null		binder.registerCustomEditor(String.class, new StringTrimmerEditor(true));		binder.registerCustomEditor(Date.class, new CustomDateEditor(sdf, true));		binder.registerCustomEditor(Integer.TYPE, new CustomNumberEditor(Integer.class, true) {			public void setValue(Object o) {				super.setValue((o == null) ? 0 : o);			}		});	}