protected Object callParentClone() throws CloneNotSupportedException {
        return super.clone();
    }
To avoid having to catch clone not supported exception everywhere, and create code with lack of
coverage, this class exist to hide the clone not supported exceptions that should never happen.
clustercontroller-utils/src/main/java/com/yahoo/vespa/clustercontroller/utils/util/CertainlyCloneable.java