Tomcat throws our the JSP source

I have my application with apache and tomcat in the regular configuration with a JSP login page.
When the application is in the process of starting, if I access the opening page from my browser, the login page SOURCE is shown in the browser.
What do I need to do in order to show a message that the server is being started (or to show a "cannot find page" message)
I currently access it as http://localhost:<port-no>/
I dont specify the page name since I have that configured in my apache's httpd.conf as DirectoryIndex jsp/Login.jsp