Iron Fist of Maven 3.0 transition pack

This page contains advice to ensure smooth transition to maven 3 from maven 2 :

A set of maven-enforcer-plugin rule

• Check that plugin versions are defined
• TODO: Ensure that plugin defs appear only once
• TODO: More rules!

</project>

relative path to parent

If a project is referring to a parent pom, but that pom isn't reachable in the default parent path (../pom.xml). Then you should either :

• update it to the right path
• put <relativePath /> in the <parent> tag so that maven knows it will have to look for it directly in the local repository

Standard variables

When one wants to refer to the artifactId of a POM, the variable $

can be used.
There are a lot of other possibilities to do that, like $

, $

and so on.
These ways are all deprecated and might be deleted in the future. With maven3, all these deprecated uses appear as warnings.

• Always use *$
  Unknown macro: {project.xxx}
  * and no more $
  Unknown macro: {pom.xxx}
  or $
  Unknown macro: {xxx}

1. Thank JVZ for the page title: http://twitter.com/jvanzyl/status/4621533361