The Maven team is pleased to announce the Checkstyle plugin 2.0 release!

http://maven.apache.org/reference/plugins/checkstyle/

The Maven Checkstyle plugin is a plugin for Checkstyle
(http://checkstyle.sourceforge.net) that allows for code
to be checked and a Maven report produced

Changes in this version:

Note that this plugin has been tested with Maven HEAD. Using it with
another version of Maven is at your own risks! :-)

You can download the Checkstyle Maven plugin here:
http://www.ibiblio.org/maven/maven/plugins/maven-checkstyle-plugin-2.0.jar

Have fun!