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Problems calling function 'z:outDeviceStyleSheets'
org.zkoss.zel.ELException: Problems calling function 'z:outDeviceStyleSheets' at org.zkoss.zel.impl.parser.AstFunction.getValue(AstFunction.java:204) at org.zkoss.zel.impl.ValueExpressionImpl.getValue(ValueExpressionImpl.java:184) at org.zkoss.xel.zel.ELXelExpression.evaluate(ELXelExpression.java:41) at org.zkoss.web.servlet.dsp.impl.XelNode.interpret(XelNode.java:44) at org.zkoss.web.servlet.dsp.impl.RootNode.interpret(RootNode.java:52) at org.zkoss.web.servlet.dsp.impl.RootNode.interpret(RootNode.java:60) at org.zkoss.web.util.resource.DspExtendlet.service(DspExtendlet.java:95) at org.zkoss.web.util.resource.ClassWebResource.web0(ClassWebResource.java:615) at org.zkoss.web.util.resource.ClassWebResource.web(ClassWebResource.java:602) at org.zkoss.web.util.resource.ClassWebResource.service(ClassWebResource.java:282) at org.zkoss.zk.au.http.DHtmlResourceServlet.doGet0(DHtmlResourceServlet.java:117) at org.zkoss.zk.au.http.DHtmlUpdateServlet.doGet(DHtmlUpdateServlet.java:397) at org.zkoss.zk.au.http.DHtmlUpdateServlet.doPost(DHtmlUpdateServlet.java:459) at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176) at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145) at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92) at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:394) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339) at org.zkoss.web.servlet.Servlets.forward(Servlets.java:906) at org.zkoss.zk.au.http.AuUploader.service(AuUploader.java:212) at org.zkoss.zk.au.http.DHtmlUpdateServlet.doGet(DHtmlUpdateServlet.java:419) at org.zkoss.zk.au.http.DHtmlUpdateServlet.doPost(DHtmlUpdateServlet.java:459) at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176) at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145) at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92) at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:394) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at io.prometheus.client.filter.MetricsFilter.doFilter(MetricsFilter.java:125) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.NullPointerException at org.zkoss.zk.ui.http.ExecutionImpl.encodeURL(ExecutionImpl.java:322) at org.zkoss.zk.ui.Executions.encodeURL(Executions.java:132) at org.zkoss.zk.ui.sys.HtmlPageRenders.outLangStyleSheets(HtmlPageRenders.java:412) at org.zkoss.zk.fn.JspFns.outDeviceStyleSheets(JspFns.java:116) at org.zkoss.zk.fn.DspFns.outDeviceStyleSheets(DspFns.java:80) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.zkoss.zel.impl.parser.AstFunction.getValue(AstFunction.java:192)
The only 1 place that calls z:outDeviceStyleSheets I found is at zul.jar/web/zul/html/fileupload-done.html.dsp.
But it's used for uploading result, not for downloading.
Your stack trace show it call AuUploader:
org.zkoss.zk.au.http.AuUploader.service(AuUploader.java:212) at
ZK calls z:outDeviceStyleSheets when you run CE and upload a file. By default, calling that function should not produce an error. Do you customize fileupload-done.html.dsp?
There is no one who reported the same error before. Could provide more details like:
Hi,
You are right, i meant uploading* instead of downloading*.
We do not customize fileupload-done.html.dsp on our side. My zul looks like this: <button label="${i18n:tr('cours.bibiotheque.document.televerser')}" forward="onTeleverser()"/>
the Composer looks like this: public void onTeleverser() throws InterruptedException { media = Fileupload.get(true); if (media == null) {
we override the template of the Fileupload with the following file: https:// fossies.org / linux /zk/zul/src/archive/web/zul/html/fileuploaddlg.zul
Even if i disable to override of the template of FileUpload, it still aint working as well
Could you run the simple example below in your project to see if there is any error:
<zk xmlns:n="native">
<n:h1>Use as a Component</n:h1>
<fileupload label="Upload">
<attribute name="onUpload">
org.zkoss.util.media.Media media = event.getMedia();
System.out.println(media.toString());
</attribute>
</fileupload>
<n:h1>static method</n:h1>
<div onUpload="processMedia(event.getMedias());">
<zscript deferred="true"><![CDATA[
import org.zkoss.util.media.Media;
public void processMedia(Media[] media) {
if (media != null) {
for (int i = 0; i < media.length; i++) {
if (media[i] instanceof org.zkoss.image.Image) {
image.setContent(media[i]);
} else {
Messagebox.show("Not an image: " + media[i], "Error",
Messagebox.OK, Messagebox.ERROR);
break; //not to show too many errors
}
}
}
}
]]></zscript>
<vbox>
<button label="Upload" onClick="Fileupload.get(1);" />
<image id="image" />
</vbox>
</div>
</zk>
Or could you simplify your page to narrow down the problem? For example, remove the business logic, replace values from a database with static strings, remove functions one by one, then finally you can produce a simple zul like mine to reproduce the problem.
Asked: 2022-07-28 23:39:34 +0800
Seen: 15 times
Last updated: Aug 12 '22