versions:display-plugin-updates does not understand maven-enforcer-plugin

It seems like this issue has been reported here (credits go to Aleksandr M for finding this).

Apparently, the display-dependency-updates goal relies on the prerequisites element to find out the Maven version required by the current project and totally ignores the enforcer-plugin, even though the prerequisites-tag should not be used normally, it is required in order to get the dependency plugin to behave as expected.

To avoid this message I use last version of versions-maven-plugin

mvn org.codehaus.mojo:versions-maven-plugin:2.7:display-plugin-updates

Note that it still requires either use of maven-enforcer-plugin for all but maven-plugin projects, or use of prerequisites tag for projects with maven-plugin packaging.