@Override
    public void deconstruct() {
        rendererRegistry.deconstruct();
        renderingExecutor.shutdown();
        try {
            if ( ! renderingExecutor.awaitTermination(5, TimeUnit.SECONDS)) {
                renderingExecutor.shutdownNow();
            }
        } catch (InterruptedException e) {
            renderingExecutor.shutdownNow();
        }
    }
Returns the renderers known to this
container-search/src/main/java/com/yahoo/search/searchchain/ExecutionFactory.java