title: How to share common properties among several maven projects?
body: <p>I have several projects built by maven, and I want to share some common properties among them - spring version, mysql driver version, svn base url, etc. - so I can update them once and it will be reflected on all projects. </p>
  
  <p>I thought of having a single super pom with all the properties, but if I change one of the problem I need to either increment its version (and to update all the poms inherit from it) or to delete it from all the developers' machines which I don't want to do. </p>
  
  <p>Can specify these parameters externally to the pom? I still want to have the external location definition in a parent pom.</p>