private void signalActivation() {
        log.info("Switching to the latest deployed set of configurations and components. " +
                 "Application config generation: " + configurer.generation());
        var metric = configurer.getComponent(Metric.class);
        metric.set(APPLICATION_GENERATION.baseName(), configurer.generation(), metric.createContext(Map.of()));
    }
Do not delete this method even if it's empty.
Calling this methods forces this class to be loaded,
which runs the static block.
container-disc/src/main/java/com/yahoo/container/jdisc/ConfiguredApplication.java