Hi,

I've changed domain entity property java.util.Date to 
org.apche.isis.applib.value.Date, because I didnt want the time component.

When listing the entity, I get an error. Plz help.

org.apache.wicket.WicketRuntimeException: Method onRequest of interface 
org.apache.wicket.behavior.IBehaviorListener targeted at 
org.apache.wicket.ajax.markup.html.AjaxLink$1@5a50f70d on component [AjaxLink 
[Component id = menuLink]] threw an exception
        at 
org.apache.wicket.RequestListenerInterface.internalInvoke(RequestListenerInterface.java:268)
        at 
org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:241)
        at 
org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler.invokeListener(ListenerInterfaceRequestHandler.java:250)
        at 
org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler.respond(ListenerInterfaceRequestHandler.java:236)
        at 
org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:862)
        at 
org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
        at 
org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:261)
        at 
org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:218)
        at 
org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:289)
        at 
org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:259)
        at 
org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:201)
        at 
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:282)
        at 
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
        at 
org.apache.isis.core.webapp.diagnostics.IsisLogOnExceptionFilter.doFilter(IsisLogOnExceptionFilter.java:52)
        at 
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
        at 
org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
        at 
org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
        at 
org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
        at 
org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
        at 
org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)
        at 
org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
        at 
org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
        at 
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
        at 
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
        at 
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
        at 
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
        at 
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
        at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
        at 
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
        at org.mortbay.jetty.Server.handle(Server.java:326)
        at 
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
        at 
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
        at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
        at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
        at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
        at 
org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
        at 
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at 
org.apache.wicket.RequestListenerInterface.internalInvoke(RequestListenerInterface.java:258)
        ... 36 more
Caused by: java.lang.ClassCastException: java.lang.String cannot be cast to 
java.util.SortedSet
        at dom.bz.Customer.jdoReplaceField(Customer.java)
        at dom.bz.Customer.jdoReplaceFields(Customer.java)
        at 
org.datanucleus.state.JDOStateManager.replaceFields(JDOStateManager.java:3418)
        at 
org.apache.isis.objectstore.jdo.datanucleus.JDOStateManagerForIsis.replaceFields(JDOStateManagerForIsis.java:137)
        at 
org.datanucleus.store.rdbms.query.PersistentClassROF$2.fetchFields(PersistentClassROF.java:643)
        at 
org.datanucleus.state.JDOStateManager.loadFieldValues(JDOStateManager.java:2541)
        at 
org.datanucleus.state.JDOStateManager.initialiseForHollow(JDOStateManager.java:282)
        at 
org.apache.isis.objectstore.jdo.datanucleus.JDOStateManagerForIsis.initialiseForHollow(JDOStateManagerForIsis.java:60)
        at 
org.datanucleus.state.ObjectProviderFactoryImpl.newForHollow(ObjectProviderFactoryImpl.java:119)
        at 
org.datanucleus.ExecutionContextImpl.newObjectProviderForHollowPopulated(ExecutionContextImpl.java:1350)
        at 
org.datanucleus.ExecutionContextImpl.findObject(ExecutionContextImpl.java:3206)
        at 
org.datanucleus.store.rdbms.query.PersistentClassROF.getObjectForDatastoreId(PersistentClassROF.java:637)
        at 
org.datanucleus.store.rdbms.query.PersistentClassROF.getObject(PersistentClassROF.java:410)
        at 
org.datanucleus.store.rdbms.query.ForwardQueryResult.nextResultSetElement(ForwardQueryResult.java:181)
        at 
org.datanucleus.store.rdbms.query.ForwardQueryResult$QueryResultIterator.next(ForwardQueryResult.java:403)
        at 
org.apache.isis.objectstore.jdo.datanucleus.persistence.queries.PersistenceQueryProcessorAbstract.loadAdapters(PersistenceQueryProcessorAbstract.java:79)
        at 
org.apache.isis.objectstore.jdo.datanucleus.persistence.queries.PersistenceQueryFindAllInstancesProcessor.process(PersistenceQueryFindAllInstancesProcessor.java:57)
        at 
org.apache.isis.objectstore.jdo.datanucleus.persistence.queries.PersistenceQueryFindAllInstancesProcessor.process(PersistenceQueryFindAllInstancesProcessor.java:34)
        at 
org.apache.isis.objectstore.jdo.datanucleus.DataNucleusObjectStore.processPersistenceQuery(DataNucleusObjectStore.java:523)
        at 
org.apache.isis.objectstore.jdo.datanucleus.DataNucleusObjectStore.loadInstancesAndAdapt(DataNucleusObjectStore.java:518)
        at 
org.apache.isis.core.runtime.system.persistence.PersistenceSession$1.execute(PersistenceSession.java:438)
        at 
org.apache.isis.core.runtime.system.persistence.PersistenceSession$1.execute(PersistenceSession.java:435)
        at 
org.apache.isis.core.runtime.system.transaction.IsisTransactionManager.executeWithinTransaction(IsisTransactionManager.java:201)
        at 
org.apache.isis.core.runtime.system.persistence.PersistenceSession.getInstancesFromPersistenceLayer(PersistenceSession.java:435)
        at 
org.apache.isis.core.runtime.system.persistence.PersistenceSession.getInstances(PersistenceSession.java:431)
        at 
org.apache.isis.core.runtime.system.persistence.PersistenceSession.findInstances(PersistenceSession.java:368)
        at 
org.apache.isis.core.runtime.system.persistence.PersistenceSession.findInstances(PersistenceSession.java:363)
        at 
org.apache.isis.core.runtime.persistence.internal.RuntimeContextFromSession$8.allMatchingQuery(RuntimeContextFromSession.java:275)
        at 
org.apache.isis.core.metamodel.services.container.DomainObjectContainerDefault.allMatches(DomainObjectContainerDefault.java:435)
        at 
org.apache.isis.core.metamodel.services.container.DomainObjectContainerDefault.allInstances(DomainObjectContainerDefault.java:393)
        at dom.bz.Customers.list(Customers.java:42)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at 
org.apache.isis.core.metamodel.facets.actions.interaction.ActionInvocationFacetForInteractionAbstract.internalInvoke(ActionInvocationFacetForInteractionAbstract.java:314)
        at 
org.apache.isis.core.metamodel.facets.actions.interaction.ActionInvocationFacetForInteractionAbstract.invoke(ActionInvocationFacetForInteractionAbstract.java:188)
        at 
org.apache.isis.core.runtime.transaction.facets.ActionInvocationFacetWrapTransaction$1.execute(ActionInvocationFacetWrapTransaction.java:57)
        at 
org.apache.isis.core.runtime.transaction.facets.ActionInvocationFacetWrapTransaction$1.execute(ActionInvocationFacetWrapTransaction.java:54)
        at 
org.apache.isis.core.runtime.system.transaction.IsisTransactionManager.executeWithinTransaction(IsisTransactionManager.java:201)
        at 
org.apache.isis.core.runtime.transaction.facets.ActionInvocationFacetWrapTransaction.invoke(ActionInvocationFacetWrapTransaction.java:54)
        at 
org.apache.isis.core.metamodel.specloader.specimpl.ObjectActionImpl.execute(ObjectActionImpl.java:367)
        at 
org.apache.isis.core.metamodel.specloader.specimpl.ObjectActionImpl.executeWithRuleChecking(ObjectActionImpl.java:358)
        at 
org.apache.isis.viewer.wicket.model.models.ActionModel.executeAction(ActionModel.java:464)
        at 
org.apache.isis.viewer.wicket.model.models.ActionModel.load(ActionModel.java:444)
        at 
org.apache.isis.viewer.wicket.model.models.ActionModel.load(ActionModel.java:77)
        at 
org.apache.wicket.model.LoadableDetachableModel.getObject(LoadableDetachableModel.java:121)
        at 
org.apache.isis.viewer.wicket.ui.components.actions.ActionPanel.executeActionHandlingApplicationExceptions(ActionPanel.java:300)
        at 
org.apache.isis.viewer.wicket.ui.components.actions.ActionPanel.executeActionOnTargetAndProcessResults(ActionPanel.java:206)
        at 
org.apache.isis.viewer.wicket.ui.components.actions.ActionPanel.executeActionAndProcessResults(ActionPanel.java:154)
        at 
org.apache.isis.viewer.wicket.ui.components.actions.ActionPanel.buildGui(ActionPanel.java:93)
        at 
org.apache.isis.viewer.wicket.ui.components.actions.ActionPanel.<init>(ActionPanel.java:78)
        at 
org.apache.isis.viewer.wicket.ui.components.actions.ActionPanelFactory.createComponent(ActionPanelFactory.java:49)
        at 
org.apache.isis.viewer.wicket.viewer.registries.components.ComponentFactoryRegistryDefault.createComponent(ComponentFactoryRegistryDefault.java:128)
        at 
org.apache.isis.viewer.wicket.ui.components.widgets.cssmenu.ActionLinkFactoryAbstract$1.onClick(ActionLinkFactoryAbstract.java:103)
        at 
org.apache.wicket.ajax.markup.html.AjaxLink$1.onEvent(AjaxLink.java:86)
        at 
org.apache.wicket.ajax.AjaxEventBehavior.respond(AjaxEventBehavior.java:124)
        at 
org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:633)
        ... 41 more

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