Maybe it is a dumb quesion but I really cannot find a good document about what is Liberty Maven Plugin and what it is used for ?
I have checked some posts like How to redeploy artifact with liberty-maven-plugin? but it is not about the basic things. I need a good basic document,
The Liberty Maven Plugin provides a number of goals for managing a Liberty runtime, including downloading and installing the runtime, starting/stopping a server, installing features, and deploying applications. The plugin is open source and the code and documentation is available on Github here: https://github.com/OpenLiberty/ci.maven
There is a guide and sample project on building and testing a simple web application using the Liberty Maven Plugin and Open Liberty here: https://openliberty.io/guides/maven-intro.html