If you need to validate a project's main model, just add the validate-main-model goal to the pom.xml.
<project>
...
<build>
<plugins>
...
<plugin>
<groupId>org.jomc</groupId>
<artifactId>maven-jomc-plugin</artifactId>
<version>1.6.1</version>
<executions>
<execution>
<id>default-main</id>
<goals>
<goal>validate-main-model</goal>
</goals>
</execution>
</executions>
</plugin>
...
</plugins>
</build>
...
</project>If you need to validate a project's test model, just add the validate-test-model goal to the pom.xml.
<project>
...
<build>
<plugins>
...
<plugin>
<groupId>org.jomc</groupId>
<artifactId>maven-jomc-plugin</artifactId>
<version>1.6.1</version>
<executions>
<execution>
<id>default-test</id>
<goals>
<goal>validate-test-model</goal>
</goals>
</execution>
</executions>
</plugin>
...
</plugins>
</build>
...
</project>