public void deconstruct() {
        // deconstruct the renderers which was created by this
        getRenderer(jsonRendererId.toSpecification()).deconstruct();
        getRenderer(xmlRendererId.toSpecification()).deconstruct();
        getRenderer(pageRendererId.toSpecification()).deconstruct();
        getRenderer(eventRendererId.toSpecification()).deconstruct();
    }
Must be called when use of this is discontinued to free the resources it has allocated
container-search/src/main/java/com/yahoo/search/rendering/RendererRegistry.java