title: Java web app - What determines my Servlet API version? Does it get specified in web.xml?
body: <p>I'm using Eclipse EE Juno and my current web application is using <code>Dynamic web modules 2.4</code>. I'm trying to bump the version up to 3.0 but for some reason I'm unable to. when I try to change the version in project facets I get <code>Cannot change version of project facet Dynamic Web Module to 3.0</code>. Is it possible that there some bunk line in my web.xml file that determines this? How do I change the Dynamic web modules version if not from Eclipse project facet setting alone? </p>