Hi, On Tue, Mar 23, 2021 at 7:43 AM Satyavathi Iynaparthi <satyavath...@hcl.com.invalid> wrote:
> Classification: Confidential > I am not sure whether I am allowed to read further. > > Hi Team, > > We are in process of migration our Web application from Wicket 6.30 to > Wicket 8.11.0. > As a first step, placed below jars in the classpath. > > wicket-auth-roles-8.11.0.jar > wicket-core-8.11.0.jar > wicket-datetime-8.0.0-M7.jar > better use https://github.com/wicketstuff/core/tree/master/wicket-datetime-parent , https://search.maven.org/artifact/org.wicketstuff/wicketstuff-datetime-yui/8.11.0/jar > wicket-extensions-8.11.0.jar > wicket-request-8.11.0.jar > wicket-util-8.11.0.jar > wicketstuff-inmethod-grid-8.11.0.jar > > Addressed the compilation issues related to AjaxFallBackLink onClick() > method . > Changed the method signature to public void > onClick(Optional<AjaxRequestTarget> target). > > We have a Html page > > SettingsPanel.html > > <?xml version="1.0" encoding="UTF-8"?> > <html xmlns:wicket=" > http://wicket.apache.org/dtds.data/wicket-xhtml1.4-strict.dtd"; lang="en"> > > <wicket:panel> > <a href="#" > wicket:id="saveSettingsLink"><img wicket:id="saveIcon" /></a> > > > </wicket:panel> > > </html> > > SettingsPanel.java > > AjaxFallbackLink<Serializable> settingsLink = new > AjaxFallbackLink<Serializable>("saveSettingsLink") { > private static final long serialVersionUID = 1L; > > @Override > public void onClick(Optional<AjaxRequestTarget> target) { > //some logic > target.get().add(feedback); > replace it with: target.ifPresent(t -> t.add(feedback)); I am not sure what is the reason to still use AjaxFallback** components but if your users really disable JavaScript in their browsers then you have to check that the Optional brings AjaxRequestTarget before trying to use it. > > } > }; > Image img = new Image("saveIcon", new Model<Serializable>() { > private static final long serialVersionUID = 1L; > > @Override > public Serializable getObject() { > return new > PackageResourceReference(SettingsPanel.class,"save.png"); > } > }); > img.add(new AttributeModifier("title", new > StringResourceModel("saveTitle", ColumnSettingsLinkPanel.this, > new Model<String>()))); > settingsLink.add(img); > > With the above code, in Wicket 6.30, save image (save.png) gets displayed > on the page and when user clicks on the image link, > onlick(AjaxRequestTarget target) gets triggered. > Post migrating to Wicket 8.11.0, image is not displaying on the page and > when user clicks on the image link, onClick(Optional<AjaxRequestTarget> > target) getting triggered, but the target value is always Empty. > > Below is the stack trace > ERROR - DefaultExceptionMapper - Unexpected error occurred > java.util.NoSuchElementException: No value present > at java.base/java.util.Optional.get(Optional.java:148) > at > com.csc.pts.web.ui.ColumnSettingsLinkPanel$3.onClick(SettingsPanel.java:98) > at > org.apache.wicket.ajax.markup.html.AjaxFallbackLink.onClick(AjaxFallbackLink.java:122) > at org.apache.wicket.markup.html.link.Link.onRequest(Link.java:189) > at > org.apache.wicket.core.request.handler.ListenerRequestHandler.internalInvoke(ListenerRequestHandler.java:306) > at > org.apache.wicket.core.request.handler.ListenerRequestHandler.invoke(ListenerRequestHandler.java:255) > at > org.apache.wicket.core.request.handler.ListenerRequestHandler.invokeListener(ListenerRequestHandler.java:215) > at > org.apache.wicket.core.request.handler.ListenerRequestHandler.respond(ListenerRequestHandler.java:208) > at > org.apache.wicket.core.request.handler.RequestSettingRequestHandler.respond(RequestSettingRequestHandler.java:78) > at > org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:912) > at > org.apache.wicket.request.RequestHandlerExecutor.execute(RequestHandlerExecutor.java:65) > at > org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:283) > at > org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:253) > at > org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:221) > at > org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:262) > at > org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:204) > at > org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:286) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) > at > org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) > at > org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) > at > org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) > at > org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) > at > org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) > at > org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) > at org.apache.tomcat.util.net > .NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) > at org.apache.tomcat.util.net > .SocketProcessorBase.run(SocketProcessorBase.java:49) > at > java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) > at > java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) > at > org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) > at java.base/java.lang.Thread.run(Thread.java:834) > > Can you please advise on the changes required to make this functionality > work with Wicket 8.11.0 version. > > Thanks, > Satya > ::DISCLAIMER:: > ________________________________ > The contents of this e-mail and any attachment(s) are confidential and > intended for the named recipient(s) only. E-mail transmission is not > guaranteed to be secure or error-free as information could be intercepted, > corrupted, lost, destroyed, arrive late or incomplete, or may contain > viruses in transmission. The e mail and its contents (with or without > referred errors) shall therefore not attach any liability on the originator > or HCL or its affiliates. Views or opinions, if any, presented in this > email are solely those of the author and may not necessarily reflect the > views or opinions of HCL or its affiliates. Any form of reproduction, > dissemination, copying, disclosure, modification, distribution and / or > publication of this message without the prior written consent of authorized > representative of HCL is strictly prohibited. If you have received this > email in error please delete it and notify the sender immediately. Before > opening any email and/or attachments, please check them for viruses and > other defects. > ________________________________ >
