delete(c.specsByGVandName, gv)
			}
			regenerationCounter.With(map[string]string{"group": gv.Group, "version": gv.Version, "crd": name, "reason": "remove"})
			c.updateGroupVersion(gv)
		}
	}
}

func (c *Controller) updateGroupVersion(gv schema.GroupVersion) error {
	if _, ok := c.specsByGVandName[gv]; !ok {
		c.openAPIV3Service.DeleteGroupVersion(groupVersionToOpenAPIV3Path(gv))
		return nil
	}

		spec, err := builder3.BuildOpenAPISpecFromRoutes(restfuladapter.AdaptWebServices(ws), oa.V3Config)
		if err != nil {
			klog.Errorf("Failed to build OpenAPI v3 for group %s, %q", gv, err)

		}
		openAPIVersionedService.UpdateGroupVersion(gv, spec)
	}
	return openAPIVersionedService