There are 3 repositories under build-management topic.
Apache Maven Surefire
Apache Maven Shade Plugin
Apache Maven Dependency Plugin
Apache Maven Enforcer (Plugin)
Apache Maven Archetype (Plugin)
Apache Maven Release (Plugin)
Apache Maven Build Cache Extension
Apache Maven Assembly Plugin
Apache Maven Javadoc Plugin
Apache Maven Checkstyle Plugin
Apache Maven JAR Plugin
Apache Maven Clean Plugin
Apache Maven Deploy Plugin
Apache Maven Plugin Tools
Apache Maven Resources Plugin
Apache Maven JLink Plugin
Apache Maven PMD Plugin
Apache Maven Site Plugin
Apache Maven Dependency Analyzer
Apache Maven WAR Plugin