How to use Servlet 3.0 annotations with GWT?

Servlet annotation @WebServlet("/test") does not work in GWT embedded Jetty 8. I am getting 404 ERROR on http://127.0.0.1:8888/test. But after deploying project to Tomcat 7 URL loads fine. How to make Servlet 3.0 annotations work in GWT's Jetty 8?

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