2014-07-09 11:25:40,884 WARN .magnolia.dam.app.ui.field.DamFilePreviewComponent: Could not create tmp file xxxxx java.lang.NullPointerException at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1792) at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1769) at info.magnolia.dam.app.ui.field.DamFilePreviewComponent.createAssetFile(DamFilePreviewComponent.java:183) at info.magnolia.dam.app.ui.field.DamFilePreviewComponent.refreshItem(DamFilePreviewComponent.java:169) at info.magnolia.dam.app.ui.field.DamFilePreviewComponent.refreshItem(DamFilePreviewComponent.java:83) at info.magnolia.ui.form.field.component.AbstractContentPreviewComponent.onValueChange(AbstractContentPreviewComponent.java:71) at info.magnolia.ui.form.field.LinkField$2.valueChange(LinkField.java:230) at sun.reflect.GeneratedMethodAccessor431.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:508) at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:167) at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:969) at com.vaadin.ui.AbstractField.fireValueChange(AbstractField.java:1126) at info.magnolia.ui.form.field.LinkField$LinkFieldTextBox.fireValueChange(LinkField.java:82) at com.vaadin.ui.AbstractField.setValue(AbstractField.java:542) at com.vaadin.ui.AbstractField.setValue(AbstractField.java:445) at com.vaadin.ui.AbstractTextField.setValue(AbstractTextField.java:432) at info.magnolia.ui.form.field.LinkField.setValue(LinkField.java:162) at info.magnolia.ui.form.field.LinkField$LinkFieldChooseDialogCallback.onItemChosen(LinkField.java:305) at info.magnolia.ui.dialog.choosedialog.action.ChooseDialogAction.execute(ChooseDialogAction.java:68) at info.magnolia.ui.api.action.AbstractActionExecutor.execute(AbstractActionExecutor.java:62) at info.magnolia.ui.dialog.BaseDialogPresenter.executeAction(BaseDialogPresenter.java:198) at info.magnolia.ui.dialog.BaseDialogPresenter.onActionFired(BaseDialogPresenter.java:189) at info.magnolia.ui.dialog.actionarea.renderer.DefaultEditorActionRenderer$DefaultActionView$1.buttonClick(DefaultEditorActionRenderer.java:66) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:508) at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:167) at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:969) at com.vaadin.ui.Button.fireClick(Button.java:368) at com.vaadin.ui.Button$1.click(Button.java:57) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:168) at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:118) at com.vaadin.server.communication.ServerRpcHandler.handleBurst(ServerRpcHandler.java:214) 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:728) 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.module.cache.executor.Bypass.processCacheRequest(Bypass.java:58) at info.magnolia.module.cache.executor.CompositeExecutor.processCacheRequest(CompositeExecutor.java:66) at info.magnolia.module.cache.filter.CacheFilter.doFilter(CacheFilter.java:153) at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:58) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) 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.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.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 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.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.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) [46/3763] 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:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) 2014-07-09 11:25:40,886 ERROR a.ui.dialog.choosedialog.ChooseDialogPresenterImpl: An error occurred while executing an action. info.magnolia.ui.api.action.ActionExecutionException: Action execution failed for action: commit at info.magnolia.ui.api.action.AbstractActionExecutor.execute(AbstractActionExecutor.java:64) at info.magnolia.ui.dialog.BaseDialogPresenter.executeAction(BaseDialogPresenter.java:198) at info.magnolia.ui.dialog.BaseDialogPresenter.onActionFired(BaseDialogPresenter.java:189) at info.magnolia.ui.dialog.actionarea.renderer.DefaultEditorActionRenderer$DefaultActionView$1.buttonClick(DefaultEditorActionRenderer.java:66) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:508) at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:167) at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:969) at com.vaadin.ui.Button.fireClick(Button.java:368) at com.vaadin.ui.Button$1.click(Button.java:57) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:168) at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:118) at com.vaadin.server.communication.ServerRpcHandler.handleBurst(ServerRpcHandler.java:214) 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:728) 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.module.cache.executor.Bypass.processCacheRequest(Bypass.java:58) at info.magnolia.module.cache.executor.CompositeExecutor.processCacheRequest(CompositeExecutor.java:66) at info.magnolia.module.cache.filter.CacheFilter.doFilter(CacheFilter.java:153) at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:58) at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:80) 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.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.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 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.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.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.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) Caused by: com.vaadin.event.ListenerMethod$MethodException: Invocation of method valueChange in info.magnolia.ui.form.field.LinkField$2 failed. at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:528) at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:167) at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:969) at com.vaadin.ui.AbstractField.fireValueChange(AbstractField.java:1126) at info.magnolia.ui.form.field.LinkField$LinkFieldTextBox.fireValueChange(LinkField.java:82) at com.vaadin.ui.AbstractField.setValue(AbstractField.java:542) at com.vaadin.ui.AbstractField.setValue(AbstractField.java:445) at com.vaadin.ui.AbstractTextField.setValue(AbstractTextField.java:432) at info.magnolia.ui.form.field.LinkField.setValue(LinkField.java:162) at info.magnolia.ui.form.field.LinkField$LinkFieldChooseDialogCallback.onItemChosen(LinkField.java:305) at info.magnolia.ui.dialog.choosedialog.action.ChooseDialogAction.execute(ChooseDialogAction.java:68) at info.magnolia.ui.api.action.AbstractActionExecutor.execute(AbstractActionExecutor.java:62) ... 106 more Caused by: java.lang.IllegalArgumentException: java.lang.IllegalStateException at com.google.common.net.MediaType.parse(MediaType.java:589) at info.magnolia.dam.app.ui.field.DamFilePreviewComponent.refreshItem(DamFilePreviewComponent.java:171) at info.magnolia.dam.app.ui.field.DamFilePreviewComponent.refreshItem(DamFilePreviewComponent.java:83) at info.magnolia.ui.form.field.component.AbstractContentPreviewComponent.onValueChange(AbstractContentPreviewComponent.java:71) at info.magnolia.ui.form.field.LinkField$2.valueChange(LinkField.java:230) at sun.reflect.GeneratedMethodAccessor431.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:508) ... 117 more Caused by: java.lang.IllegalStateException at com.google.common.base.Preconditions.checkState(Preconditions.java:161) at com.google.common.net.MediaType$Tokenizer.consumeTokenIfPresent(MediaType.java:602) at com.google.common.net.MediaType$Tokenizer.consumeToken(MediaType.java:610) at com.google.common.net.MediaType.parse(MediaType.java:559) ... 125 more