How to give an alias name for a web application?

Well one day a need arised that we have to maintain versioning for our application i.e a war and ear
So the problem happpened with me was how to keep the context root of the war which i have used in my Apps for page redirection.
As i was using Jboss server for development.It has a capability of adding an alias name for context root.We just have to create a file called jboss-web.xml and put inside our web-inf folder of our application the tag we have to put inside the file is
<br /><jboss-web><br /><context-root>yourroot</context-root><br /></jboss-web><br />
thats all.So now if your war file name is project-1.0.war
you can just acess your application from brower as http://host:portno/yourroot/ thats all.