Exception thrown in EventBus.unsubscribe after close a browser window

[LukaszByczynski]

00:38:20.031 [ContainerBackgroundProcessor[StandardEngine[Catalina]]] DEBUG o.s.c.a.CommonAnnotationBeanPostProcessor - Invoking destroy method on bean 'scopedTarget.uiEventBus': void org.vaadin.spring.events.internal.ScopedEventBus.destroy()
00:38:20.129 [ContainerBackgroundProcessor[StandardEngine[Catalina]]] WARN  o.s.c.a.CommonAnnotationBeanPostProcessor - Invocation of destroy method failed on bean with name 'scopedTarget.uiEventBus'
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.sessionEventBus': Scope 'session' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:353) ~[spring-beans-4.0.5.RELEASE.jar:4.0.5.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195) ~[spring-beans-4.0.5.RELEASE.jar:4.0.5.RELEASE]
    at org.springframework.aop.target.SimpleBeanTargetSource.getTarget(SimpleBeanTargetSource.java:35) ~[spring-aop-4.0.5.RELEASE.jar:4.0.5.RELEASE]
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:187) ~[spring-aop-4.0.5.RELEASE.jar:4.0.5.RELEASE]
    at com.sun.proxy.$Proxy24.unsubscribe(Unknown Source) ~[$Proxy24.class:na]
    at org.vaadin.spring.events.internal.ScopedEventBus.destroy(ScopedEventBus.java:72) ~[ScopedEventBus.class:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_60]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.7.0_60]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_60]
    at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_60]
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:349) ~[spring-beans-4.0.5.RELEASE.jar:4.0.5.RELEASE]
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeDestroyMethods(InitDestroyAnnotationBeanPostProcessor.java:314) ~[spring-beans-4.0.5.RELEASE.jar:4.0.5.RELEASE]
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeDestruction(InitDestroyAnnotationBeanPostProcessor.java:153) ~[spring-beans-4.0.5.RELEASE.jar:4.0.5.RELEASE]
    at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:239) [spring-beans-4.0.5.RELEASE.jar:4.0.5.RELEASE]
    at org.springframework.beans.factory.support.DisposableBeanAdapter.run(DisposableBeanAdapter.java:232) [spring-beans-4.0.5.RELEASE.jar:4.0.5.RELEASE]
    at org.vaadin.spring.internal.UIStore.detach(UIStore.java:148) [UIStore.class:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_60]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.7.0_60]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_60]
    at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_60]
    at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:508) [vaadin-server-7.3.0.alpha2.jar:7.3.0.alpha2]
    at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:198) [vaadin-server-7.3.0.alpha2.jar:7.3.0.alpha2]
    at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:161) [vaadin-server-7.3.0.alpha2.jar:7.3.0.alpha2]
    at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:978) [vaadin-server-7.3.0.alpha2.jar:7.3.0.alpha2]
    at com.vaadin.server.AbstractClientConnector.detach(AbstractClientConnector.java:610) [vaadin-server-7.3.0.alpha2.jar:7.3.0.alpha2]
    at com.vaadin.ui.AbstractComponent.detach(AbstractComponent.java:593) ~[vaadin-server-7.3.0.alpha2.jar:7.3.0.alpha2]
    at com.vaadin.ui.UI.detach(UI.java:1224) ~[vaadin-server-7.3.0.alpha2.jar:7.3.0.alpha2]
    at com.vaadin.ui.UI.setSession(UI.java:428) ~[vaadin-server-7.3.0.alpha2.jar:7.3.0.alpha2]
    at com.vaadin.server.VaadinSession.removeUI(VaadinSession.java:892) ~[vaadin-server-7.3.0.alpha2.jar:7.3.0.alpha2]
    at com.vaadin.server.VaadinService$1$1.run(VaadinService.java:470) ~[vaadin-server-7.3.0.alpha2.jar:7.3.0.alpha2]
    at com.vaadin.ui.UI.accessSynchronously(UI.java:1309) ~[vaadin-server-7.3.0.alpha2.jar:7.3.0.alpha2]
    at com.vaadin.server.VaadinService$1.run(VaadinService.java:458) ~[vaadin-server-7.3.0.alpha2.jar:7.3.0.alpha2]
    at com.vaadin.server.VaadinSession.accessSynchronously(VaadinSession.java:1347) ~[vaadin-server-7.3.0.alpha2.jar:7.3.0.alpha2]
    at com.vaadin.server.VaadinService.fireSessionDestroy(VaadinService.java:447) ~[vaadin-server-7.3.0.alpha2.jar:7.3.0.alpha2]
    at com.vaadin.server.VaadinSession.valueUnbound(VaadinSession.java:323) ~[vaadin-server-7.3.0.alpha2.jar:7.3.0.alpha2]
    at org.apache.catalina.session.StandardSession.removeAttributeInternal(StandardSession.java:1800) ~[catalina.jar:7.0.53]
    at org.apache.catalina.session.StandardSession.expire(StandardSession.java:865) ~[catalina.jar:7.0.53]
    at org.apache.catalina.session.StandardSession.isValid(StandardSession.java:656) ~[catalina.jar:7.0.53]
    at org.apache.catalina.session.ManagerBase.processExpires(ManagerBase.java:532) ~[catalina.jar:7.0.53]
    at org.apache.catalina.session.ManagerBase.backgroundProcess(ManagerBase.java:517) ~[catalina.jar:7.0.53]
    at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1352) ~[catalina.jar:7.0.53]
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1530) ~[catalina.jar:7.0.53]
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1540) ~[catalina.jar:7.0.53]
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1540) ~[catalina.jar:7.0.53]
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1519) ~[catalina.jar:7.0.53]
    at java.lang.Thread.run(Thread.java:745) ~[na:1.7.0_60]
Caused by: java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.
    at org.springframework.web.context.request.RequestContextHolder.currentRequestAttributes(RequestContextHolder.java:131) ~[spring-web-4.0.5.RELEASE.jar:4.0.5.RELEASE]
    at org.springframework.web.context.request.SessionScope.get(SessionScope.java:91) ~[spring-web-4.0.5.RELEASE.jar:4.0.5.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:338) ~[spring-beans-4.0.5.RELEASE.jar:4.0.5.RELEASE]
    ... 45 common frames omitted

[peholmst]

Thanks for the report, will investigate.

[peholmst]

I've made a few changes to the code. Can you check if it works better now?

[LukaszByczynski]

I did some tests and seems its works correctly. Thanks

[peholmst]

This bug is apparently still present when the HTTP session expires. Reopening.

[peholmst]

Changed how event buses are proxied. Should work now.