What is it? 
	Apache JServ is a 100% pure Java servlet engine designed to
	implement the Sun Java Servlet API 2.0  specifications  and
	add   Java   Servlet   capabilities   to   the       Apache
	HTTP Server <http://www.apache.org/>.

The Latest Version
	Details  of  the  latest  version  can be found on the 
	archive of the Java Apache Project web site 
        <http://archive.apache.org/dist/java/jserv>.

WWW: http://archive.apache.org/dist/java/jserv/

Note: this is using a historical archive of old software releases,
as such it is probably wise to find a newer and actively maintained 
solution.