When you have a complex project with a lot of extensions, it could be interesting to know the actual list of dependencies ordered by priority. You can get this list at server startup by simply adding the org.exoplatform.container.configuration.debug system property to your launch command. You will then get an info message in your log file as below:

The dependencies ordered by priority of the portal container 'portal' are: portal, dashboard, exoadmin, eXoGadgets, eXoGadgetServer, rest, web.