	private static void checkSortExpression(Order order) {

		if (order instanceof JpaOrder && ((JpaOrder) order).isUnsafe()) {
			return;
		}

		if (PUNCTATION_PATTERN.matcher(order.getProperty()).find()) {
			throw new InvalidDataAccessApiUsageException(String
					.format("Sort expression '%s' must not contain functions or expressions. Please use JpaSort.unsafe.", order));
		}
	}
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.