private void startAndRemoveClients(List<ClientProvider> currentClients) {
        synchronized (monitor) {
            Set<ClientProvider> clientToRemove = createIdentityHashSet(startedClients);
            clientToRemove.removeAll(currentClients);
            for (ClientProvider client : clientToRemove) {
                startedClients.remove(client);
            }
            for (ClientProvider client : currentClients) {
                if (!startedClients.contains(client)) {
                    client.start();
                    startedClients.add(client);
                }
            }
        }
    }
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