Maven archetype from project - how to preserve package names?

Question

I'm trying to grab my project and generate an Archetype from it via :

archetype:create-from-project

The thing is, that my project has src/main/java package structure com.sample.app, but the archetype must have it as user wants when generating the project from archetype, but that is impossible I suppose. It doesn't seem to grab groupId and artifactId and generate archetype-resources/src/main/java based on this input.

Anyway, that's why there is this argument I suppose : packageName

mvn archetype:create-from-project -DpackageName=com.sample.app

But it doesn't work and there is still archetype-resources/src/main/java/org/sample/app ..

Answer 1

The create-from-project goal usually automatically detects the base package name and replaced it, so you would end up with having \templateproject\target\generated-sources\archetype\src\main\resources\archetype-resources\src\test\java\Foo.java with a package declaration of ${package}

Try the archetype plugin and create-from-project with a nearly empty hello-world project and you will see that the generated archetype has the package removed. That way, the user who uses archetype:generate can specify his package name at generation time.