2018-06-26 09:33:55,672 ERROR .magnolia.ui.admincentral.AdmincentralErrorHandler: AdmincentralUI has encountered an unhandled exception.
com.vaadin.server.ServerRpcManager$RpcInvocationException: Unable to invoke method onActionTriggered in info.magnolia.ui.vaadin.gwt.client.actionbar.rpc.ActionbarServerRpc
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:159) ~[vaadin-server-8.1.5.jar:8.1.5]
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:116) ~[vaadin-server-8.1.5.jar:8.1.5]
	at com.vaadin.server.communication.ServerRpcHandler.handleInvocation(ServerRpcHandler.java:445) [vaadin-server-8.1.5.jar:8.1.5]
	at com.vaadin.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:410) [vaadin-server-8.1.5.jar:8.1.5]
	at com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:274) [vaadin-server-8.1.5.jar:8.1.5]
	at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:90) [vaadin-server-8.1.5.jar:8.1.5]
	at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:41) [vaadin-server-8.1.5.jar:8.1.5]
	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1568) [vaadin-server-8.1.5.jar:8.1.5]
	at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:381) [vaadin-server-8.1.5.jar:8.1.5]
	at info.magnolia.ui.admincentral.AdmincentralVaadinServlet.service(AdmincentralVaadinServlet.java:141) [magnolia-ui-admincentral-5.6.5.jar:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) [servlet-api.jar:?]
	at info.magnolia.cms.filters.ServletDispatchingFilter.doFilter(ServletDispatchingFilter.java:148) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.CompositeFilter.doFilter(CompositeFilter.java:65) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.virtualuri.VirtualUriFilter.doFilter(VirtualUriFilter.java:98) [magnolia-virtual-uri-5.6.5.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.module.cache.executor.Bypass.processCacheRequest(Bypass.java:58) [magnolia-cache-core-5.6.1.jar:?]
	at info.magnolia.module.cache.executor.CompositeExecutor.processCacheRequest(CompositeExecutor.java:67) [magnolia-cache-core-5.6.1.jar:?]
	at info.magnolia.module.cache.filter.CacheFilter.doFilter(CacheFilter.java:220) [magnolia-cache-core-5.6.1.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.i18n.I18nContentSupportFilter.doFilter(I18nContentSupportFilter.java:89) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.RangeSupportFilter.doFilter(RangeSupportFilter.java:77) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.security.BaseSecurityFilter.doFilter(BaseSecurityFilter.java:57) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.security.SecurityCallbackFilter.doFilter(SecurityCallbackFilter.java:84) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:59) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.security.LogoutFilter.doFilter(LogoutFilter.java:94) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:59) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.module.site.filters.SiteMergeFilter.doFilter(SiteMergeFilter.java:119) [magnolia-site-1.2.2.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.multisite.filters.MultiSiteFilter.doFilter(MultiSiteFilter.java:120) [magnolia-module-multisite-1.3.3.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MultiChannelFilter.doFilter(MultiChannelFilter.java:83) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.module.cache.filter.GZipFilter.doFilter(GZipFilter.java:73) [magnolia-cache-core-5.6.1.jar:?]
	at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:59) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.security.auth.login.LoginFilter.doFilter(LoginFilter.java:127) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.enterprise.registration.RegistrationFilter.doFilter(RegistrationFilter.java:64) [magnolia-module-enterprise-5.6.6.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.personalization.preview.filter.PreviewFilter.doFilter(PreviewFilter.java:92) [magnolia-personalization-preview-app-1.5.2.jar:?]
	at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:59) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.ContentTypeFilter.doFilter(ContentTypeFilter.java:155) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.ContextFilter.doFilter(ContextFilter.java:128) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.CompositeFilter.doFilter(CompositeFilter.java:65) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.SafeDestroyMgnlFilterWrapper.doFilter(SafeDestroyMgnlFilterWrapper.java:107) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlFilterDispatcher.doDispatch(MgnlFilterDispatcher.java:67) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlMainFilter.doFilter(MgnlMainFilter.java:110) [magnolia-core-5.6.5.jar:?]
	at info.magnolia.cms.filters.MgnlMainFilter.doFilter(MgnlMainFilter.java:96) [magnolia-core-5.6.5.jar:?]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) [catalina.jar:7.0.82]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [catalina.jar:7.0.82]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) [catalina.jar:7.0.82]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110) [catalina.jar:7.0.82]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) [catalina.jar:7.0.82]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) [catalina.jar:7.0.82]
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962) [catalina.jar:7.0.82]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) [catalina.jar:7.0.82]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445) [catalina.jar:7.0.82]
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1115) [tomcat-coyote.jar:7.0.82]
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637) [tomcat-coyote.jar:7.0.82]
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318) [tomcat-coyote.jar:7.0.82]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_151]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_151]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-coyote.jar:7.0.82]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_151]
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_151]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_151]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_151]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_151]
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:155) ~[vaadin-server-8.1.5.jar:8.1.5]
	... 103 more
Caused by: com.vaadin.event.ListenerMethod$MethodException: Invocation of method actionTrigger in info.magnolia.ui.actionbar.ActionbarViewImpl$1 failed.
	at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:531) ~[vaadin-server-8.1.5.jar:8.1.5]
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:211) ~[vaadin-server-8.1.5.jar:8.1.5]
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:174) ~[vaadin-server-8.1.5.jar:8.1.5]
	at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:1033) ~[vaadin-server-8.1.5.jar:8.1.5]
	at info.magnolia.ui.vaadin.actionbar.Actionbar.access$000(Actionbar.java:59) ~[magnolia-ui-vaadin-common-widgets-5.6.5.jar:5.6.5]
	at info.magnolia.ui.vaadin.actionbar.Actionbar$1.onActionTriggered(Actionbar.java:71) ~[magnolia-ui-vaadin-common-widgets-5.6.5.jar:5.6.5]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_151]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_151]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_151]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_151]
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:155) ~[vaadin-server-8.1.5.jar:8.1.5]
	... 103 more
Caused by: java.lang.NoSuchMethodError: info.magnolia.ui.form.field.LinkField.setValue(Ljava/lang/String;)V
	at info.magnolia.ga.experiments.field.PageVariantsLinkFieldFactory$1.pageSelected(PageVariantsLinkFieldFactory.java:80) ~[classes/:?]
	at info.magnolia.ga.experiments.field.event.TestPageEvent.dispatch(TestPageEvent.java:34) ~[classes/:?]
	at info.magnolia.ga.experiments.field.event.TestPageEvent.dispatch(TestPageEvent.java:24) ~[classes/:?]
	at info.magnolia.event.SimpleEventBus.fireEvent(SimpleEventBus.java:75) ~[magnolia-core-5.6.5.jar:?]
	at info.magnolia.ga.experiments.action.OpenExperimentsAppAction.execute(OpenExperimentsAppAction.java:72) ~[classes/:?]
	at info.magnolia.ui.api.action.AbstractActionExecutor.execute(AbstractActionExecutor.java:62) ~[magnolia-ui-api-5.6.5.jar:?]
	at info.magnolia.ui.contentapp.browser.BrowserPresenter.executeAction(BrowserPresenter.java:309) ~[magnolia-ui-contentapp-5.6.5.jar:?]
	at info.magnolia.ui.contentapp.browser.BrowserPresenter.onActionbarItemClicked(BrowserPresenter.java:268) ~[magnolia-ui-contentapp-5.6.5.jar:?]
	at info.magnolia.ui.actionbar.ActionbarPresenter.onActionbarItemClicked(ActionbarPresenter.java:205) ~[magnolia-ui-actionbar-5.6.5.jar:?]
	at info.magnolia.ui.actionbar.ActionbarViewImpl$1.actionTrigger(ActionbarViewImpl.java:67) ~[magnolia-ui-actionbar-5.6.5.jar:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_151]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_151]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_151]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_151]
	at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:510) ~[vaadin-server-8.1.5.jar:8.1.5]
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:211) ~[vaadin-server-8.1.5.jar:8.1.5]
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:174) ~[vaadin-server-8.1.5.jar:8.1.5]
	at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:1033) ~[vaadin-server-8.1.5.jar:8.1.5]
	at info.magnolia.ui.vaadin.actionbar.Actionbar.access$000(Actionbar.java:59) ~[magnolia-ui-vaadin-common-widgets-5.6.5.jar:5.6.5]
	at info.magnolia.ui.vaadin.actionbar.Actionbar$1.onActionTriggered(Actionbar.java:71) ~[magnolia-ui-vaadin-common-widgets-5.6.5.jar:5.6.5]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_151]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_151]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_151]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_151]
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:155) ~[vaadin-server-8.1.5.jar:8.1.5]
	... 103 more