ERROR info.magnolia.ui.admincentral.AdmincentralErrorHandler 09.11.2015 08:55:06 -- AdmincentralUI has encountered an unhandled exception. com.vaadin.data.Buffered$SourceException at com.vaadin.ui.AbstractField.setValue(AbstractField.java:517) at com.vaadin.ui.AbstractSelect.setValue(AbstractSelect.java:698) at com.vaadin.ui.OptionGroup.setValue(OptionGroup.java:188) at com.vaadin.ui.AbstractSelect.changeVariables(AbstractSelect.java:494) at com.vaadin.ui.OptionGroup.changeVariables(OptionGroup.java:81) at com.vaadin.server.communication.ServerRpcHandler.changeVariables(ServerRpcHandler.java:403) at com.vaadin.server.communication.ServerRpcHandler.handleBurst(ServerRpcHandler.java:228) at com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:111) at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:91) at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:37) at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1371) at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:238) at info.magnolia.ui.admincentral.AdmincentralVaadinServlet.service(AdmincentralVaadinServlet.java:132) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at info.magnolia.cms.filters.ServletDispatchingFilter.doFilter(ServletDispatchingFilter.java:148) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.CompositeFilter.doFilter(CompositeFilter.java:65) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.VirtualUriFilter.doFilter(VirtualUriFilter.java:68) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.i18n.I18nContentSupportFilter.doFilter(I18nContentSupportFilter.java:73) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.RangeSupportFilter.doFilter(RangeSupportFilter.java:84) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.security.BaseSecurityFilter.doFilter(BaseSecurityFilter.java:57) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.security.SecurityCallbackFilter.doFilter(SecurityCallbackFilter.java:83) at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:58) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.security.LogoutFilter.doFilter(LogoutFilter.java:93) at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:58) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.module.templatingkit.filters.SiteMergeFilter.doFilter(SiteMergeFilter.java:112) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.multisite.filters.MultiSiteFilter.doFilter(MultiSiteFilter.java:106) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.MultiChannelFilter.doFilter(MultiChannelFilter.java:82) at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:58) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.module.cache.filter.GZipFilter.doFilter(GZipFilter.java:73) at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:58) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.security.auth.login.LoginFilter.doFilter(LoginFilter.java:104) at net.trimm.magnolia.gpp.filter.GPPLoginFilter.doFilter(GPPLoginFilter.java:66) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.enterprise.registration.RegistrationFilter.doFilter(RegistrationFilter.java:56) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.module.devicedetection.filter.DeviceDetectionFilter.doFilter(DeviceDetectionFilter.java:71) at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:58) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.personalization.preview.filter.PreviewFilter.doFilter(PreviewFilter.java:92) at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:58) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82) at info.magnolia.personalization.trait.AbstractTraitDetectorFilter.doFilter(AbstractTraitDetectorFilter.java:61) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.personalization.trait.AbstractTraitDetectorFilter.doFilter(AbstractTraitDetectorFilter.java:61) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.ContentTypeFilter.doFilter(ContentTypeFilter.java:103) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.ContextFilter.doFilter(ContextFilter.java:129) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) at info.magnolia.cms.filters.CompositeFilter.doFilter(CompositeFilter.java:65) at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:90) at info.magnolia.cms.filters.SafeDestroyMgnlFilterWrapper.doFilter(SafeDestroyMgnlFilterWrapper.java:106) at info.magnolia.cms.filters.MgnlFilterDispatcher.doDispatch(MgnlFilterDispatcher.java:66) at info.magnolia.cms.filters.MgnlMainFilter.doFilter(MgnlMainFilter.java:107) at info.magnolia.cms.filters.MgnlMainFilter.doFilter(MgnlMainFilter.java:93) 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:123) 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.ajp.AjpProcessor.process(AjpProcessor.java:200) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: com.vaadin.data.util.converter.Converter$ConversionException: Cannot convert class java.util.LinkedHashSet to class java.util.LinkedList at info.magnolia.ui.vaadin.integration.jcr.DefaultProperty.setValue(DefaultProperty.java:66) at info.magnolia.ui.form.field.transformer.basic.ListToSetTransformer.writeToItem(ListToSetTransformer.java:72) at info.magnolia.ui.form.field.transformer.TransformedProperty.setValue(TransformedProperty.java:67) at com.vaadin.ui.AbstractField.setValue(AbstractField.java:508) ... 108 more