Maven plugin to execute an embedded walkmod, an open source tool to apply coding conventions.
There are three supported goals: "apply", "check", "patch".
<plugin>
  <groupId>org.walkmod.maven.plugins</groupId>
  <artifactId>walkmod-maven-plugin</artifactId>
  <version>2.0.1</version>
  <executions>
    <execution>
      <phase>process-classes</phase>
      <goals>
        <goal>patch</goal>
      </goals>
    </execution>
  </executions>
</plugin>
Check all the documentation here