May be it would be useful to change assembly plugin to dependency plugin that could export all dependency jars to directory libs/ ? Not all dependencies can healthy be unpack to one place. Sometimes Spring framework libs break down, for example.

Using AnnotationConfiguration is unwanted in large applications, because it took large time on scan classes each restart. How can we disable AnnotationConfiguration() ?

Hello, Martin!
Sometimes i look some answers in your repo. Today i broke my app that use PUSH, after vaadin version update. It may be helpful if you add some PUSH examples.

How to prevent creating that directory?
Fat Jar must include all application data except directory with Java libs and config files.
Is it downloading node files from intenet? Then it cannot be start without internet?

Hello! I make some modification:

@Route("")
public class MainView extends VerticalLayout implements PageConfigurator {
    public MainView() {
        Button button = new Button("Click me",
                event -> Notification.show("Clicked!"));
        add(button);
    }
    @Override
    public void configurePage(InitialPageSettings settings) {
        settings.addFavIcon("icon", "favicon.ico", "16x16");
    }
}

After clean+package there is broken ico file in result.
It is not actually this repo issue, but how we can fix maven-assembly-plugin to make them didn't broke ICO ?

Don't include META-INF/resources/webjars into the jar-with-dependencies, everything should be packaged by webpack.

There is no visual reaction on button click. Tested in latest Chrome.

But @route() with different parameter will fail test. Example: @route("main2").