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ClassCastException when attempting to deploy new custom portlet

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Dave Fardoe, modificado 11 Anos atrás.

ClassCastException when attempting to deploy new custom portlet

Junior Member Postagens: 30 Data de Entrada: 29/01/13 Postagens Recentes
I am working with Liferay to develop a few proof-of-concept portlets in order to evaluate which Java UI Framework to use. Currently I am working with IceFaces, but I am frequently running into issues with deploying my portlets.

I have created a simple portlet which displace an ace:dataTable component.

When I attempt to deploy it, I get the following exception:
org.icefaces.impl.application.WindowScopeManager$State cannot be cast to org.icefaces.impl.application.WindowScopeManager$State

I don't see this error in the log file, but it is displayed in the portlet when it fails to load.

I appreciate any advice regarding what the cause and possible fixes/workarounds might be.

For some background, I am using:
Liferay Developer Studio with Tomcat 7 (built-in)
IceFaces 3.2.0
JDK version 1.6.0_38
JRE version 1.6.0_38
Windows 7 Enterprise
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Brian Scott Schupbach, modificado 11 Anos atrás.

RE: ClassCastException when attempting to deploy new custom portlet

Expert Postagens: 329 Data de Entrada: 23/10/08 Postagens Recentes
seems like the error is in your .jsp and deploying isn't your issue. Use some debug statements to track down the line that is causing the issue.
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Neil Griffin, modificado 11 Anos atrás.

RE: ClassCastException when attempting to deploy new custom portlet

Liferay Legend Postagens: 2655 Data de Entrada: 27/07/05 Postagens Recentes
The error indicates that you might have multiple versions of the ICEfaces JARs in your classpath.

Example#1:
tomcat/lib/icefaces.jar
tomcat/webapps/my-portlet/WEB-INF/lib/icefaces.jar

Example#2:
tomcat/webapps/my-portlet/WEB-INF/lib/icefaces-3.1.0.jar
tomcat/webapps/my-portlet/WEB-INF/lib/icefaces-3.2.0.jar
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Dave Fardoe, modificado 11 Anos atrás.

RE: ClassCastException when attempting to deploy new custom portlet

Junior Member Postagens: 30 Data de Entrada: 29/01/13 Postagens Recentes
Thanks for the responses

I've taken a look for duplicate instances of the icefaces jar files, but I did not find any.

Just to add a bit more information: I am trying to implement IPC between two portlets on the same page. One portlet has a drop down list. When a selection is made, and the submit button is clicked, the datatable in a second portlet should update with the data matching the selection from the first portlet.

Both portlets have the icefaces jar files (icefaces-ace.jar, icefaces-compat.jar, icefaces.jar, and icepush.jar) in their /docroot/WEB-INF/lib folder. No icefaces jar files are present in <tomcat install dir>/lib

After some troubleshooting, it seems like either portlet works if they are deployed and added to the page on their own. When the other portlet is deployed and added to the page, that is when the exception occurs.

For completeness, here is the full stack trace produced:
java.lang.ClassCastException: org.icefaces.impl.application.WindowScopeManager$State cannot be cast to org.icefaces.impl.application.WindowScopeManager$State
	at org.icefaces.impl.application.WindowScopeManager.getPortletState(WindowScopeManager.java:390)
	at org.icefaces.impl.application.WindowScopeManager.getState(WindowScopeManager.java:370)
	at org.icefaces.impl.application.WindowScopeManager.lookupWindowScope(WindowScopeManager.java:85)
	at org.icefaces.impl.application.WindowELResolver.getScope(WindowELResolver.java:66)
	at org.icefaces.impl.application.WindowELResolver.getValue(WindowELResolver.java:36)
	at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
	at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
	at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44)
	at org.jboss.el.parser.AstValue.getValue(AstValue.java:63)
	at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
	at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
	at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
	at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
	at javax.faces.component.UIData.getValue(UIData.java:731)
	at org.icefaces.ace.component.datatable.DataTable.getValue(DataTable.java:151)
	at org.icefaces.ace.component.datatable.DataTable.getDataModel(DataTable.java:179)
	at javax.faces.component.UIData.setRowIndexWithoutRowStatePreserved(UIData.java:484)
	at javax.faces.component.UIData.setRowIndex(UIData.java:473)
	at org.icefaces.ace.component.datatable.DataTable.setRowIndex(DataTable.java:450)
	at org.icefaces.ace.component.datatable.DataTable.visitTree(DataTable.java:1442)
	at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
	at javax.faces.component.UIForm.visitTree(UIForm.java:344)
	at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
	at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
	at org.icefaces.impl.event.RestoreResourceDependencies.processEvent(RestoreResourceDependencies.java:24)
	at javax.faces.event.SystemEvent.processListener(SystemEvent.java:106)
	at com.sun.faces.application.ApplicationImpl.processListeners(ApplicationImpl.java:2129)
	at com.sun.faces.application.ApplicationImpl.invokeListenersFor(ApplicationImpl.java:2105)
	at com.sun.faces.application.ApplicationImpl.publishEvent(ApplicationImpl.java:300)
	at com.sun.faces.application.ApplicationImpl.publishEvent(ApplicationImpl.java:244)
	at javax.faces.application.ApplicationWrapper.publishEvent(ApplicationWrapper.java:670)
	at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:812)
	at javax.faces.component.UIViewRoot.encodeBegin(UIViewRoot.java:962)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1754)
	at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:401)
	at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
	at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:288)
	at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
	at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
	at com.liferay.faces.bridge.lifecycle.LifecycleWrapper.render(LifecycleWrapper.java:45)
	at com.liferay.faces.bridge.BridgePhaseRenderImpl.execute(BridgePhaseRenderImpl.java:280)
	at com.liferay.faces.bridge.BridgePhaseRenderImpl.execute(BridgePhaseRenderImpl.java:92)
	at com.liferay.faces.bridge.BridgeImpl.doFacesRequest(BridgeImpl.java:99)
	at javax.portlet.faces.GenericFacesPortlet.doView(GenericFacesPortlet.java:255)
	at javax.portlet.GenericPortlet.doDispatch(GenericPortlet.java:328)
	at javax.portlet.faces.GenericFacesPortlet.doDispatch(GenericFacesPortlet.java:204)
	at javax.portlet.GenericPortlet.render(GenericPortlet.java:233)
	at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:100)
	at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:64)
	at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:111)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
	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:684)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:593)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:530)
	at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:534)
	at com.liferay.portlet.InvokerPortletImpl.invokeRender(InvokerPortletImpl.java:607)
	at com.liferay.portlet.InvokerPortletImpl.render(InvokerPortletImpl.java:359)
	at org.apache.jsp.html.portal.render_005fportlet_jsp._jspService(render_005fportlet_jsp.java:1207)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at com.liferay.portal.servlet.DirectRequestDispatcher.include(DirectRequestDispatcher.java:97)
	at com.liferay.portal.servlet.PACLRequestDispatcherWrapper.doDispatch(PACLRequestDispatcherWrapper.java:90)
	at com.liferay.portal.servlet.PACLRequestDispatcherWrapper.include(PACLRequestDispatcherWrapper.java:54)
	at com.liferay.portal.util.PortalImpl.renderPortlet(PortalImpl.java:5166)
	at com.liferay.portal.util.PortalUtil.renderPortlet(PortalUtil.java:1569)
	at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.processPortlet(RuntimePortletImpl.java:165)
	at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.processPortlet(RuntimePortletImpl.java:97)
	at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.doProcessTemplate(RuntimePortletImpl.java:531)
	at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.doDispatch(RuntimePortletImpl.java:394)
	at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.processTemplate(RuntimePortletImpl.java:228)
	at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.processTemplate(RuntimePortletImpl.java:216)
	at com.liferay.portlet.layoutconfiguration.util.RuntimePortletUtil.processTemplate(RuntimePortletUtil.java:113)
	at org.apache.jsp.html.portal.layout.view.portlet_jsp._jspService(portlet_jsp.java:507)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
	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:684)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:593)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:530)
	at com.liferay.portal.action.LayoutAction.includeLayoutContent(LayoutAction.java:468)
	at com.liferay.portal.action.LayoutAction.processLayout(LayoutAction.java:735)
	at com.liferay.portal.action.LayoutAction.execute(LayoutAction.java:249)
	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
	at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:176)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
	at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:560)
	at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:537)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
	at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:294)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
	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:684)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
	at com.liferay.portal.servlet.FriendlyURLServlet.service(FriendlyURLServlet.java:138)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
	at com.liferay.portal.servlet.filters.strip.StripFilter.processFilter(StripFilter.java:335)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
	at com.liferay.portal.servlet.filters.gzip.GZipFilter.processFilter(GZipFilter.java:123)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
	at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:294)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
	at com.liferay.portal.servlet.filters.i18n.I18nFilter.processFilter(I18nFilter.java:241)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
	at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:239)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
	at com.liferay.portal.servlet.filters.sso.ntlm.NtlmPostFilter.processFilter(NtlmPostFilter.java:83)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
	at com.liferay.portal.sharepoint.SharepointFilter.processFilter(SharepointFilter.java:80)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
	at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
	at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.processFilter(VirtualHostFilter.java:216)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:187)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:738)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:167)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:167)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:187)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
	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:225)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)
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Neil Griffin, modificado 11 Anos atrás.

RE: ClassCastException when attempting to deploy new custom portlet

Liferay Legend Postagens: 2655 Data de Entrada: 27/07/05 Postagens Recentes
Did you happen to specify the private-request-attributes option in the WEB-INF/liferay-portlet.xml descriptor? Setting that to false could cause problems like this.
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Dave Fardoe, modificado 11 Anos atrás.

RE: ClassCastException when attempting to deploy new custom portlet

Junior Member Postagens: 30 Data de Entrada: 29/01/13 Postagens Recentes
I did have that set to false, but I was under the impression (perhaps mistakenly?) that it was necessary for IPC using Ajax Push (which was the eventual goal of the POC I was working on).

FWIW we have decided on using another UI framework, so I won't have the opportunity to test this out further.

I appreciate the assistance, though!
Jason Flores, modificado 9 Anos atrás.

RE: ClassCastException when attempting to deploy new custom portlet

New Member Mensagem: 1 Data de Entrada: 18/06/14 Postagens Recentes
Neil Griffin:
Did you happen to specify the private-request-attributes option in the WEB-INF/liferay-portlet.xml descriptor? Setting that to false could cause problems like this.



How is session sharing achieved without this property set?