I don't know if this's a use for it, when I build and upload an artifact to repository, I can remove all maven dependencies needed in this project for artifact's pom.xml, but they will still exist in META-INF/../pom.xml.

In this situation, when my SpringBoot project import this artifact as a dependency, maven won't actively download it's dependencies, but I can use "maven-dependency-plugin: copy dependency" to get needed jars defined in META-INF/../pom.xml, and then include them into classpath, which will make SpringBoot jar smaller.