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我們正在開發Vaadin應用程序，在oc4j 10.1.3上運行它。 實現基本認證後，用戶的會話會在超時（默認值）內自動失效。 因此，用戶打開Vaadin應用程序，並且在一點上應該有一些數據集作爲另一個servlet的會話屬性。但是，那時候，我們有一個例外，說這個會議已經失效了。它永遠不會被明確地調用，也許oc4j會這樣嗎？ 在驗證執行之前它工作正常。oc4j會話失效
Aug 13, 2012 4:21:27 PM com.vaadin.Application terminalError
SEVERE: Terminal error:
com.vaadin.event.ListenerMethod$MethodException: Invocation of method buttonClick in com.mycompany.myapp$1 failed.
at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:530)
at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:164)
at com.vaadin.ui.AbstractComponent.fireEvent(AbstractComponent.java:1219)
at com.vaadin.ui.Button.fireClick(Button.java:567)
at com.vaadin.ui.Button.changeVariables(Button.java:223)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.changeVariables(AbstractCommunicationManager.java:1460)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariableBurst(AbstractCommunicationManager.java:1404)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariables(AbstractCommunicationManager.java:1329)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleUidlRequest(AbstractCommunicationManager.java:761)
at com.vaadin.terminal.gwt.server.CommunicationManager.handleUidlRequest(CommunicationManager.java:318)
at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:501)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:64)
at com.mycompany.myapp.RewriteFilter.doFilter(RewriteFilter.java:44)
at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:644)
at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:391)
at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:908)
at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:458)
at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:313)
at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:199)
at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.IllegalStateException: Session was invalidated
at com.evermind.server.http.EvermindHttpSession.setAttribute(EvermindHttpSession.java:158)
at com.evermind.server.http.EvermindHttpSession.setAttribute(EvermindHttpSession.java:137)
at com.mycompany.myapp$1.buttonClick(MyPage.java:105)
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:585)
at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:510)
... 22 more