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  1. ZK
  2. ZK-3744

error when enabling websocket serverpush via au-event

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: Freshly, 8.5.0
    • Fix Version/s: 8.5.0
    • Component/s: ZK Update Engine
    • Security Level: Jimmy
    • Environment:

      reproduced on jetty 9.4.6.v20170531 and tomcat 8.5.20

      Description

      Steps to Reproduce

      <zk>
        <button label="Enable Server Push" 
          onClick="desktop.enableServerPush(true);"/>
        <button label="Disable Server Push" 
          onClick="desktop.enableServerPush(false);"/>
      </zk>
      

      Clicking the button "Enable..."

      Current Result

      SEVERE: 
      java.lang.IllegalArgumentException: Request cannot be null
      	at javax.servlet.ServletRequestWrapper.<init>(ServletRequestWrapper.java:89)
      	at javax.servlet.http.HttpServletRequestWrapper.<init>(HttpServletRequestWrapper.java:86)
      	at org.zkoss.zkmax.au.websocket.RequestWrapper.<init>(RequestWrapper.java:39)
      	at org.zkoss.zkmax.au.websocket.WebSocketServerPush.setWebSocketConnectionInfos(WebSocketServerPush.java:81)
      	at org.zkoss.zkmax.au.websocket.WebSocketServerPush.start(WebSocketServerPush.java:100)
      	at org.zkoss.zk.ui.impl.DesktopImpl.enableServerPush0(DesktopImpl.java:1527)
      	at org.zkoss.zk.ui.impl.DesktopImpl.enableServerPush(DesktopImpl.java:1470)
      	at org.zkoss.zk.ui.impl.DesktopImpl.enableServerPush(DesktopImpl.java:1455)
      	at org.zkoss.zk.ui.impl.DesktopImpl.enableServerPush(DesktopImpl.java:1451)
      	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      	at java.lang.reflect.Method.invoke(Method.java:498)
      

      Expected Result

      SP enabled for the Desktop - no exception

      Debug Info

      happens on both tomcat and jetty

      Workaround

      enable SP once the page loads (since it's using the same websocket there's no overhead on the network side)

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            Assignee:
            wenninghsu wenninghsu
            Reporter:
            cor3000 cor3000
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              Dates

              Created:
              Updated:
              Resolved:

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