If I have JS files in the frontend folder of the project root, where will it get packaged when we create the jar file for addon distribution?
(When I tried it with STARTER pom files, it was not packaging any of the files from PROJECT_ROOT/frontend)
In bower mode, their HTML equivalent files were under META-INF/resources/frontend/
For a Vaadin 14 npm mode add-on you could take a look at the [component-starter]
(https://github.com/vaadin/component-starter-flow).
From there you can get the structure for working with add-on development and see that the
frontend files should be in npm or src/main/resources/META-INF/frontent