code: public ActivationConfigPropertyType<ActivationConfigType<T>> getOrCreateActivationConfigProperty()
     {
        List<Node> nodeList = childNode.get("activation-config-property");
        if (nodeList != null &&  nodeList.size() > 0)
        {
           return new ActivationConfigPropertyTypeImpl<ActivationConfigType<T>>(this, "activation-config-property", childNode, nodeList.get(0));
        }
        return createActivationConfigProperty();
     }
docs: If not already created, a new <code>activation-config-property</code> element will be created and returned.
  Otherwise, the first existing <code>activation-config-property</code> element will be returned.
  @return the instance defined for the element <code>activation-config-property</code>