I am using Maven 2 to build my Java project and I am looking for a way to present the current version number of the pom.xml to the user (using a Servlet or JSP for example).
As far as I can see, the best way would be that Maven packages the version number as a text file into the WAR. This allows me to read the version from that file and present it the way I want.
Does anyone know of a plugin that can do something like that for me? Maybe the WAR plugin can be configured to do so? Or maybe using some other approach all together?
You're looking to do filtering of resources. This is done even before the war-plugin creates the file. I'm pretty sure the war-plugin packs the version in the web.xml and manifest, but I'm not sure how to access those through servlet APIs, but it might also be a valid approach.
Have a look at the Maven resource plugin documentation, it'll tell you how it's done. I think you should be able to just substitue the version using ${version}. Haven't got a working maven installation to test it here though.