I am guessing its suggesting you have one context root for static content and another root for your actions and stuff. for example you might have something like
for actions http://localhost/actions/login.action and for static contents http://localhost/static/login.png and in your login.action jsp you will have to refer to login.png as <img src='/static/login.png'/> and in the HTTP server you set it to only intercept /static I am just guessing see if this helps
