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Messages posted by: dfardoe  XML
Profile for dfardoe -> Messages posted by dfardoe [3]
Author Message
They are in different WAR files. I tried your suggestion, and put them in same WAR to see if that made a difference, but I got the same result.
Just to add some additional information:

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

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:
Code:
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)
 
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:
Code:
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
 
Profile for dfardoe -> Messages posted by dfardoe [3]
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