String finalResponseURL = responseURL;
if (entityID != null) {
URLBuilder urlBuilder = new URLBuilder(responseURL);
List<Pair<String, String>> queryParams = urlBuilder.getQueryParams();
queryParams.add(new Pair<String, String>(returnParam, entityID));
finalResponseURL = urlBuilder.buildURL();
}
logger.debug("Responding to a passive IDP Discovery request with URL {}", finalResponseURL);
response.sendRedirect(finalResponseURL);