Cannot change preferences through admin interface

Log in as canonical
Go to admin interface
Go to preferences
Click on one of the preferences to edit
Result is an error page

Stacktrace:

[WARNING] [talledLocalContainer] Aug 03, 2012 11:36:26 AM org.apache.catalina.core.ApplicationDispatcher invoke
[WARNING] [talledLocalContainer] SEVERE: Servlet.service() for servlet jsp threw exception
[WARNING] [talledLocalContainer] org.springframework.beans.NullValueInNestedPathException: Invalid property 'initialWidgetStatus' of bean class [org.apache.rave.portal.web.model.PortalPreferenceForm]: Could not instantiate property type [org.apache.rave.portal.model.PortalPreference] to auto-grow nested property path: java.lang.InstantiationException: org.apache.rave.portal.model.PortalPreference
[WARNING] [talledLocalContainer] at org.springframework.beans.BeanWrapperImpl.newValue(BeanWrapperImpl.java:655)
[WARNING] [talledLocalContainer] at org.springframework.beans.BeanWrapperImpl.createDefaultPropertyValue(BeanWrapperImpl.java:625)
[WARNING] [talledLocalContainer] at org.springframework.beans.BeanWrapperImpl.setDefaultValue(BeanWrapperImpl.java:614)
[WARNING] [talledLocalContainer] at org.springframework.beans.BeanWrapperImpl.getNestedBeanWrapper(BeanWrapperImpl.java:579)
[WARNING] [talledLocalContainer] at org.springframework.beans.BeanWrapperImpl.getBeanWrapperForPropertyPath(BeanWrapperImpl.java:553)
[WARNING] [talledLocalContainer] at org.springframework.beans.BeanWrapperImpl.getPropertyValue(BeanWrapperImpl.java:719)
[WARNING] [talledLocalContainer] at org.springframework.validation.AbstractPropertyBindingResult.getActualFieldValue(AbstractPropertyBindingResult.java:99)
[WARNING] [talledLocalContainer] at org.springframework.validation.AbstractBindingResult.getFieldValue(AbstractBindingResult.java:219)
[WARNING] [talledLocalContainer] at org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:120)
[WARNING] [talledLocalContainer] at org.springframework.web.servlet.tags.BindTag.doStartTagInternal(BindTag.java:119)
[WARNING] [talledLocalContainer] at org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:79)
[WARNING] [talledLocalContainer] at org.apache.jsp.WEB_002dINF.jsp.views.admin.preferencedetail_jsp._jspService(preferencedetail_jsp.java:478)
[WARNING] [talledLocalContainer] at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
[WARNING] [talledLocalContainer] at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
[WARNING] [talledLocalContainer] at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
[WARNING] [talledLocalContainer] at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
[WARNING] [talledLocalContainer] at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
[WARNING] [talledLocalContainer] at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488)
[WARNING] [talledLocalContainer] at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:968)
[WARNING] [talledLocalContainer] at org.apache.jasper.runtime.PageContextImpl.doInclude(PageContextImpl.java:653)
[WARNING] [talledLocalContainer] at org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:647)
[WARNING] [talledLocalContainer] at org.apache.tiles.jsp.context.JspTilesRequestContext.include(JspTilesRequestContext.java:103)
[WARNING] [talledLocalContainer] at org.apache.tiles.jsp.context.JspTilesRequestContext.dispatch(JspTilesRequestContext.java:96)
[WARNING] [talledLocalContainer] at org.apache.tiles.renderer.impl.TemplateAttributeRenderer.write(TemplateAttributeRenderer.java:44)
[WARNING] [talledLocalContainer] at org.apache.tiles.renderer.impl.AbstractBaseAttributeRenderer.render(AbstractBaseAttributeRenderer.java:106)
[WARNING] [talledLocalContainer] at org.apache.tiles.renderer.impl.ChainedDelegateAttributeRenderer.write(ChainedDelegateAttributeRenderer.java:76)
[WARNING] [talledLocalContainer] at org.apache.tiles.renderer.impl.AbstractBaseAttributeRenderer.render(AbstractBaseAttributeRenderer.java:106)
[WARNING] [talledLocalContainer] at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:670)
[WARNING] [talledLocalContainer] at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:336)
[WARNING] [talledLocalContainer] at org.apache.tiles.template.InsertAttributeModel.renderAttribute(InsertAttributeModel.java:210)
[WARNING] [talledLocalContainer] at org.apache.tiles.template.InsertAttributeModel.end(InsertAttributeModel.java:126)
[WARNING] [talledLocalContainer] at org.apache.tiles.jsp.taglib.InsertAttributeTag.doTag(InsertAttributeTag.java:311)
[WARNING] [talledLocalContainer] at org.apache.jsp.WEB_002dINF.jsp.templates.base_005flayout_jsp._jspx_meth_tiles_005finsertAttribute_005f1(base_005flayout_jsp.java:225)
[WARNING] [talledLocalContainer] at org.apache.jsp.WEB_002dINF.jsp.templates.base_005flayout_jsp._jspService(base_005flayout_jsp.java:94)
[WARNING] [talledLocalContainer] at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
[WARNING] [talledLocalContainer] at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
[WARNING] [talledLocalContainer] at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
[WARNING] [talledLocalContainer] at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
[WARNING] [talledLocalContainer] at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
[WARNING] [talledLocalContainer] at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
[WARNING] [talledLocalContainer] at org.apache.tiles.servlet.context.ServletTilesRequestContext.forward(ServletTilesRequestContext.java:241)
[WARNING] [talledLocalContainer] at org.apache.tiles.servlet.context.ServletTilesRequestContext.dispatch(ServletTilesRequestContext.java:222)
[WARNING] [talledLocalContainer] at org.apache.tiles.renderer.impl.TemplateAttributeRenderer.write(TemplateAttributeRenderer.java:44)
[WARNING] [talledLocalContainer] at org.apache.tiles.renderer.impl.AbstractBaseAttributeRenderer.render(AbstractBaseAttributeRenderer.java:106)
[WARNING] [talledLocalContainer] at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:670)
[WARNING] [talledLocalContainer] at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:690)
[WARNING] [talledLocalContainer] at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:644)
[WARNING] [talledLocalContainer] at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:627)
[WARNING] [talledLocalContainer] at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:321)
[WARNING] [talledLocalContainer] at org.springframework.web.servlet.view.tiles2.TilesView.renderMergedOutputModel(TilesView.java:124)
[WARNING] [talledLocalContainer] at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:262)
[WARNING] [talledLocalContainer] at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1180)
[WARNING] [talledLocalContainer] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:950)
[WARNING] [talledLocalContainer] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
[WARNING] [talledLocalContainer] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
[WARNING] [talledLocalContainer] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
[WARNING] [talledLocalContainer] at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
[WARNING] [talledLocalContainer] at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
[WARNING] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:322)
[WARNING] [talledLocalContainer] at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116)
[WARNING] [talledLocalContainer] at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
[WARNING] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
[WARNING] [talledLocalContainer] at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
[WARNING] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
[WARNING] [talledLocalContainer] at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
[WARNING] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
[WARNING] [talledLocalContainer] at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
[WARNING] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
[WARNING] [talledLocalContainer] at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:146)
[WARNING] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
[WARNING] [talledLocalContainer] at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
[WARNING] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
[WARNING] [talledLocalContainer] at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
[WARNING] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
[WARNING] [talledLocalContainer] at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
[WARNING] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
[WARNING] [talledLocalContainer] at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:182)
[WARNING] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
[WARNING] [talledLocalContainer] at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:182)
[WARNING] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
[WARNING] [talledLocalContainer] at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
[WARNING] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
[WARNING] [talledLocalContainer] at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
[WARNING] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
[WARNING] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:184)
[WARNING] [talledLocalContainer] at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:155)
[WARNING] [talledLocalContainer] at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
[WARNING] [talledLocalContainer] at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
[WARNING] [talledLocalContainer] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
[WARNING] [talledLocalContainer] at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:615)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
[WARNING] [talledLocalContainer] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
[WARNING] [talledLocalContainer] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
[WARNING] [talledLocalContainer] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
[WARNING] [talledLocalContainer] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
[WARNING] [talledLocalContainer] at java.lang.Thread.run(Thread.java:722)
[WARNING] [talledLocalContainer]