Why use a web server with Tomcat ?

[Rui Coelho]

What is the reason for using a web server (IIS, Apache, ...) with Tomcat
when you don't have a lot of static content ?

I'm thinking of using Tomcat for a pushlet (which uses a dedicate connection
for receiving events) and I don't want to hang all the web server threads on
this dedicate connections. I don't

Thanks.