Download of jsai.tar.gz (jsai.tar.gz ( external link: SF.net): 1,320,716 octetos) will begin shortly. If not so, click link on the left.
Please note: not having time to complete jSai myself; I came across the ACEGI project which I now recommend instead.
jSai; a Servlet Authentication Implementation. jSai aims to allow easier to use, more powerful authentication for Java Servlets.