examples "mvn eclipse:m2eclipse" doesn't work

pastecode/README.md
permalink/README.md

mentions using "mvn eclipse:m2eclipse" as one of the options to import the projects into eclipse.

this fails with:

Could not find goal 'm2eclipse' in plugin org.apache.maven.plugins:maven-eclipse-plugin:2.9 among available goals help, make-artifacts, configure-workspace, install-plugins, remove-cache, eclipse, rad-clean, to-maven, myeclipse-clean, add-maven-repo, rad, clean, myeclipse -> [Help 1]