@SuppressWarnings("unchecked")
	private String getString(Object obj) {
		String ret = "";
		if (null != obj) {
			if (obj instanceof List) {
				List<String> list = ( List<String> ) obj;

				if (!Utility.isEmpty( list ))
					ret = list.get( list.size() - 1 );
			}
			else if (obj instanceof String) {
				ret = obj.toString();
			}
		}
		return ret;
	}