Thanks lweber. I can see missing handle_POST in python would be a problem. If I replace handle_GET with handle_POST only, I got a specific python error (object has no attribute 'handle_GET' ) on port 8089 web. Now I have both as you suggested, and added to web.xml, but still gets 404 error regardless I do service.get or service.post. I can do curl with -XPOST to get the correct response from port 8089.