I know that I can rename my webapp (or it\'s WAR file) to ROOT but this is a terrible way to do it, IMHO. Now I checked out the tomcat doc & it says
Quickest and may be the best solution is to have below content in /conf/Catalina/localhost/ROOT.xml
/conf/Catalina/localhost/ROOT.xml
And your webapp will be available at http://:/
http://:/