Checkstyle report with Maven2

Sorry if I will not be precise enough but I spent some time until I managed to configure custom checkstyle to be included within report generated by maven2. I want to share this knowledge so maybe somebody will need not spend so much time on this because I followed description on checkstyle maven2 plugin but that didn't work.

I have found solutions from the following mailing list archive. Follows short description.

Problem is following. I have maven java project and custom checkstyle configuration. I want to include checkstyle report into maven2 generated report. Solution is:

Create new maven project and into resources folder include your custom checkstyle configuration file e.g. my_checkstyle.xml.
Deploy this project to local or your intranet maven repository.
For this example groupId is com.my.checkstyle and artifactId is checkstyle and version is 1.0-SNAPSHOT

Then within pom of project for which you want to have custom checkstyle validation add following lines:

<build>
<extensions>
<extension>
<groupid>com.my.checkstyle</groupid>
<artifactid>checkstyle</artifactid>
<version>1.0-SNAPSHOT</version>
</extension>
</extensions>
</build>

<reporting>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<configuration>
<configlocation>my_checkstyle.xml</configlocation>
</configuration>
</plugin>
</plugins>
</reporting>

Run mvn site for your project and your customized checkstyle report will be included within your project.

Note: For some reasons, not all customizations work. Plugin is reporting errors when module element contains subelements like suppressLoadErrors. Currently I don't have enough time to play with this problem. I think solution is with using suppress warnings. If I return to this problem and find solution I will post it here.

Link to maven2 checkstyle plugin is here.