Accessing Push from wasync java client

Hi there …I am trying to access the vaadin push server from an wasync client . Can someone help me with what the correct URI would be for this …I tried /PUSH but I just get the html response.

Here is my servlet config …
@WebServlet(value = “/*”, asyncSupported = true )
@VaadinServletConfiguration(productionMode = false, ui = Tester.class )