I want to write a servlet that wraps around a set of resources and needs to protect them with basic HTTP auth; the submitted username/pass will be checked against the backend database before serving the file.
Does anyone have any working examples of this? I tried the sample at http://www.coderanch.com/t/352345/Servlets/java/HTTP-basic-authentication-Web-Applications but it kept returning an IllegalStateException in the sendError call.