title: maven add a local classes directory to module's classpath
body: <p>I know this is a bit out of maven's scope, but I need to add a local directory with compiled classes to the module's classpath.
  I saw: <a href="https://stackoverflow.com/questions/3410548/maven-add-a-folder-or-jar-file-into-currrent-classpath">Maven: add a folder or jar file into current classpath</a>, but this is good for a jar only.</p>
  
  <p>I need to have a similar solution but with compiled classes in a directory on local file system. Is this even possible?</p>
  
  <p>Thx!</p>