mill.contrib.vaadin.worker

Implements Vaadin's PluginAdapterBuild SPI to drive the production frontend build ("prepare-frontend" + "build-frontend"), mirroring what the vaadin-maven-plugin and vaadin-gradle-plugin do.

The stage dir follows the servlet resource layout: the adapter's servlet resource output directory is the META-INF/VAADIN folder under it (token file: META-INF/VAADIN/config/flow-build-info.json, bundle: META-INF/VAADIN/webapp).

Entry point of the worker classloader (see VaadinModule.vaadinWorker).

The context classloader is switched to the worker's own for the duration of the build: Vaadin's class finder uses it as the parent of the classloader it creates over the scanned classpath.