i programmed a website that acts as websocket client for my android app that acts as websocket server in my WiFi network. originally i wrote it just with javascript/jquery and it already worked without any problems, but because i got fascinated by vaadin, i totaly rewrote it with vaadin and it already works on a local tomcat 7 or 8, but not on the remote tomcat 7 or 8. the onOpen method of the android server never gets called. the server of the jquery version is the same as the one with the vaadin version, but when i try to start my page i get this error and the page does not connect to my phone, although i am able to ping my mobile phone:
vaadinPush.debug.js:11276: WebSocket connection to 'ws://serialcall.rdroid.info/PUSH/?v-uiId=3&v-csrfToken=18797926-2579-4599-a0af-29729f9deb88&X-Atmosphere-tracking-id=0&X-Atmosphere-Framework=2.1.5.vaadin4-jquery&X-Atmosphere-Transport=websocket&X-Atmosphere-TrackMessageSize=true&X-Cache-Date=0&Content-Type=application/json;%20charset=UTF-8&X-atmo-protocol=true' failed: Error during WebSocket handshake: Unexpected response code: 500this is the the vaadin log info on the non working remote server
371ms Queuing push message: {"csrfToken":"0b112c17-8c20-4307-8d2b-871589d720a6", "rpc":[["505","com.vaadin.shared.ui.ui.UIServerRpc","resize",["923","1280","1280","923"]
],["506","org.vaadin.jouni.animator.client.AnimatorServerRpc","preserveStyles",[{"useKeyframeAnimation":false, "animationTarget":"546", "duration":"2000", "delay":"0", "css":{"properties":{"opacity":"0.2"}}, "easing":"DEFAULT", "id":"25", "iterationCount":"1", "preserveStyles":true}]
]], "syncId":1}
720ms Push connection closed
721ms Push connection using primary method (websocket) failed. Trying with long-polling
1131ms Push connection established using long-polling
1132ms Sending push message: {"csrfToken":"0b112c17-8c20-4307-8d2b-871589d720a6", "rpc":[["505","com.vaadin.shared.ui.ui.UIServerRpc","resize",["923","1280","1280","923"]
],["506","org.vaadin.jouni.animator.client.AnimatorServerRpc","preserveStyles",[{"useKeyframeAnimation":false, "animationTarget":"546", "duration":"2000", "delay":"0", "css":{"properties":{"opacity":"0.2"}}, "easing":"DEFAULT", "id":"25", "iterationCount":"1", "preserveStyles":true}]
]], "syncId":1}
1154ms No onClose was received before reconnect. Forcing state to closed.this is how the vaadin log message looks on the working local server:
1008ms Making UIDL Request with params: {"csrfToken":"6be927e0-1e38-407d-b8fe-744d83a23e43", "rpc":[["1614","com.vaadin.shared.ui.ui.UIServerRpc","resize",["923","1280","1280","923"]
],["1615","org.vaadin.jouni.animator.client.AnimatorServerRpc","preserveStyles",[{"useKeyframeAnimation":false, "animationTarget":"1655", "duration":"2000", "delay":"0", "css":{"properties":{"opacity":"0.2"}}, "easing":"DEFAULT", "id":"20", "iterationCount":"1", "preserveStyles":true}]
]], "syncId":1}
1009ms Queuing push message: {"csrfToken":"6be927e0-1e38-407d-b8fe-744d83a23e43", "rpc":[["1614","com.vaadin.shared.ui.ui.UIServerRpc","resize",["923","1280","1280","923"]
],["1615","org.vaadin.jouni.animator.client.AnimatorServerRpc","preserveStyles",[{"useKeyframeAnimation":false, "animationTarget":"1655", "duration":"2000", "delay":"0", "css":{"properties":{"opacity":"0.2"}}, "easing":"DEFAULT", "id":"20", "iterationCount":"1", "preserveStyles":true}]
]], "syncId":1}
1303ms Push connection established using websocketi use tootallnate as websocket client and i have the same tomcat-version and the same javaversion on the server and on my local computer, even when i disable the firewall. no exception is thrown and could not find out why it does not work.
i stuck now because of that problems since a week.
any ideas what i do wrong?