jodd-servlet/src/main/java/jodd/servlet/DispatcherUtil.java
public static void redirectPermanent(final HttpServletRequest request, final HttpServletResponse response, String url) {
		if (url.startsWith(StringPool.SLASH)) {
			url = ServletUtil.getContextPath(request) + url;
		}
		response.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY);
		response.setHeader("Location", url);
	}
public static void redirectPermanent(final HttpServletRequest request, final HttpServletResponse response, String url) {
		if (url.startsWith(StringPool.SLASH)) {
			url = ServletUtil.getContextPath(request) + url;
		}
		response.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY);
		response.setHeader("Location", url);
	}
Performs permanent redirection (301) to specified url.