private static String createDescriptionOfConfigChanges(Stream<ChangesRequiringRestart> changesStream) {
        return changesStream
                .map(changes -> changes.toString(""))
                .collect(joining("\n"));
    }
Inspects the configuration in the new and old Vespa model to determine which services that require restart
config-model/src/main/java/com/yahoo/vespa/model/application/validation/change/ConfigValueChangeValidator.java