Search for possibly interested projects:
https://github.com/search?l=&q=revelc+filename%3Apom.xml&type=Code
https://github.com/revelc/formatter-maven-plugin/network/dependents?package_id=UGFja2FnZS0xOTUyNDE2MjI%3D
Projects having integrated both Spotless and PMD|CheckStyle are good candidates:
https://github.com/search?q=spotless+pmd&type=code