If you are adding a directory here: - Search all pom.xml files for "CORE PLUGIN LIST". - Add the new plugin to that location. - (optional) Thank the Maven developers for making this easy. - Ensure the plugin's pom.xml <version> is the same as Gerrit's own pom.xml(s). Gerrit will only embed a plugin that has the same version as itself. - Register the plugin as a submodule with git submodule.