Hi, On Tue, Sep 10, 2019 at 1:41 PM John Jiang <[email protected]> wrote: > > I wanted to test the HTTP/2 feature server push with Jetty 9.4.20, and made a > simple servlet like the below, > > public class ServerPushServlet extends HttpServlet { > > protected void doGet(HttpServletRequest request, > HttpServletResponse response) throws ServletException, > IOException { > Request req = Request.getBaseRequest(request); > System.out.println("req: " + req); > PushBuilder pushBuilder = req.getPushBuilder(); > pushBuilder.path("/res").push(); > } > } > > When tried to access http://localhost:port/push with FireFox, the following > error raised, > req: null > 2019-09-10 16:21:58.906:WARN:oejs.HttpChannel:qtp1793329556-11: /push > java.lang.NullPointerException > at httptest.ServerPushServlet.push(Unknown Source)
The problem is that request.getPushBuilder() return null if push is not supported. This happens because you are making the request using HTTP/1.1 as browsers don't support HTTP/2 if it's not encrypted. You should try https instead of http. -- Simone Bordet ---- http://cometd.org http://webtide.com Developer advice, training, services and support from the Jetty & CometD experts. _______________________________________________ jetty-users mailing list [email protected] To change your delivery options, retrieve your password, or unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/jetty-users
