In maven, you can do the following:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-pmd-plugin</artifactId>
<version>3.2</version>
<configuration>
<minimumTokens>40</minimumTokens>
<targetJdk>1.5</targetJdk>
</configuration>
</plugin>
How do I set the minimumTokens in Gradle’s PMD plugin?