@Override
    public void deconstruct()  {
        responseHandlerExecutor.shutdown();
        try {
            responseHandlerExecutor.awaitTermination(10, TimeUnit.SECONDS);
        } catch (InterruptedException e) {
            log.log(Level.WARNING, "Unable to shutdown executor", e);
        }
    }
Get service generation of service at given URL
configserver/src/main/java/com/yahoo/vespa/config/server/application/ConfigConvergenceChecker.java