@Override
    public void destroy() {
        log.info("Destroy: Shutting down container now");
        if (configurer != null) {
            configurer.shutdown();
        }
        if (slobrokConfigSubscriber != null) {
            slobrokConfigSubscriber.shutdown();
        }
        Container.get().shutdown();
        unregisterInSlobrok();
        if (supervisor != null)
            supervisor.transport().shutdown().join();
        shutdownDeadline.cancel();
        log.info("Destroy: Finished");
    }
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