This module combines all static code analysis plugins within a single project. All parts (checkstyle, PMD, etc.) are referenced with Git submodules. After cloning this suite you can get the referenced submodules using the following commands:
git submodule init
git submodule update
Then you can build all plug-ins by running mvn install in the toplevel folder. There is also an IntelliJ configuration committed that contains the coding style used in all of these projects.
All plug-ins are maintained by Ullrich Hafner. For more details please refer to the wiki page https://wiki.jenkins-ci.org/x/CwDgAQ.