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Hi
ZK version : ZK EE 7.0.2
We have been getting this exception frequently. I am wondering if anyone else seen this and any idea on how to fix it?
Thanks!
Stack trace: 13-Mar-15 07:50:09.027 [http-apr-8443-exec-7] ERROR [j:] org.zkoss.zk.ui.impl.UiEngineImpl: java.lang.ClassCastException: java.lang.Double cannot be cast to java.lang.Integer at org.zkoss.zk.ui.event.ClientInfoEvent.getInt(ClientInfoEvent.java:60) at org.zkoss.zk.ui.event.ClientInfoEvent.getClientInfoEvent(ClientInfoEvent.java:54) at org.zkoss.zk.ui.impl.DesktopImpl.service(DesktopImpl.java:720) at org.zkoss.zk.ui.impl.UiEngineImpl.execUpdate(UiEngineImpl.java:1249) at org.zkoss.zk.au.http.DHtmlUpdateServlet.process(DHtmlUpdateServlet.java:603) at org.zkoss.zk.au.http.DHtmlUpdateServlet.doGet(DHtmlUpdateServlet.java:485) at org.zkoss.zk.au.http.DHtmlUpdateServlet.doPost(DHtmlUpdateServlet.java:494) at javax.servlet.http.HttpServlet.service(HttpServlet.java:646) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611) at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2462) at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2451) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745)
This may happen when browser zooms in/out in mobile device and then the screen width/height become double value. You can override the javascript to parse the value to integer before sending the client info event.
<script defer="true"><![CDATA[
var _portrait = {'0': true, '180': true}, //default portrait definition
_initLandscape = jq.innerWidth() > jq.innerHeight(), // initial orientation is landscape or not
_initDefault = _portrait[window.orientation]; //default orientation
zAu.cmd0.clientInfo = function(dtid) {
zAu._cInfoReg = true;
var orient = '',
dpr = 1;
if (zk.mobile) {
//change default portrait definition because landscape is the default orientation for this device/browser.
if ((_initLandscape && _initDefault) || (!_initLandscape && !_initDefault))
_portrait = {'-90': true, '90': true};
orient = _portrait[window.orientation] ? 'portrait' : 'landscape';
} else {
orient = jq.innerWidth() > jq.innerHeight() ? 'landscape' : 'portrait';
}
if (window.devicePixelRatio)
dpr = window.devicePixelRatio;
zAu.send(new zk.Event(zk.Desktop.$(dtid), 'onClientInfo',
[new Date().getTimezoneOffset(),
zk.parseInt(screen.width), zk.parseInt(screen.height), screen.colorDepth,
zk.parseInt(jq.innerWidth()), zk.parseInt(jq.innerHeight()), zk.parseInt(jq.innerX()), zk.parseInt(jq.innerY()), dpr.toFixed(1), orient],
{implicit:true, rtags: {onClientInfo: 1}}));
}
]]></script>
I am guessing that you might be passing an integer value to the double component in your code, such kind of issue occurs when we use dobulebox on zul but the property that we set is actually interger.
Hi Khkim,
Have a look here: http://tracker.zkoss.org/browse/ZK-2633
this is most likely the same issue. Fixed in 8.0.3
Asked: 2015-03-16 12:19:20 +0800
Seen: 76 times
Last updated: Aug 23 '17
can you put the complete stacktrace of your logging?
chillworld ( 2015-03-16 12:22:58 +0800 )edit