Java8 Maven archetype.
https://maven.apache.org/guides/mini/guide-creating-archetypes.html を参考に書いた, java21 向け quickstart archetype です.
mvn clean install
mvn archetype:update-local-catalog
mvn archetype:crawl
ex)
mvn archetype:generate
(listed bottom row)
mvn archetype:generate -DarchetypeCatalog=local
(listed only in local catalog)
mvn archetype:generate -DarchetypeGroupId=jp.himeji-cs.maven.archetype -DarchetypeArtifactId=java21-quickstart
and so on.