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Hi We have a problem. While testing our application it can occur that the client shows the message "The server session timed out. Please click here to restart the session." while working (active clicking) with the application. While this is annoying in the first place the following problem is even worse. After clicking the link on the message (restarting) following error shows up and the browser has to be restarted: ?? type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception java.lang.IllegalStateException: SingletonManager already installed for session: 1E80DB02C04262501A1AAE9CA16210F2 org.eclipse.rwt.internal.SingletonManager.checkNotInstalled(SingletonManager.java:70) org.eclipse.rwt.internal.SingletonManager.install(SingletonManager.java:27) org.eclipse.rwt.internal.service.LifeCycleServiceHandler.clearSessionStore(LifeCycleServiceHandler.java:139) org.eclipse.rwt.internal.service.LifeCycleServiceHandler.checkRequest(LifeCycleServiceHandler.java:126) org.eclipse.rwt.internal.service.LifeCycleServiceHandler.runLifeCycle(LifeCycleServiceHandler.java:76) org.eclipse.rwt.internal.service.LifeCycleServiceHandler.synchronizedService(LifeCycleServiceHandler.java:59) org.eclipse.rwt.internal.service.LifeCycleServiceHandler.service(LifeCycleServiceHandler.java:49) org.eclipse.rwt.internal.service.ServiceManager$HandlerDispatcher.service(ServiceManager.java:34) org.eclipse.rwt.engine.RWTServlet.handleValidRequest(RWTServlet.java:68) org.eclipse.rwt.engine.RWTServlet.doPost(RWTServlet.java:47) org.eclipse.rwt.engine.RWTServlet.doGet(RWTServlet.java:39) javax.servlet.http.HttpServlet.service(HttpServlet.java:617) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) org.eclipse.rap.rwt.osgi.internal.CutOffContextPathWrapper.service(CutOffContextPathWrapper.java:105) org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61) org.eclipse.equinox.http.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:28) ... ?? Apparently the session is not timed out and still active in the server. So why did the client show this error? This smells like a bug, doesn't it?
Stephan, when the "timeout" message occur, there is a request which response contains the initial HTML page. Could you provide the request headers of this request? Is it reproducible in all browsers? From time to time there was a problem with some Chrome builds (see bug 331419 and bug 326123). There is a newsgroup post about session invalidation in Chrome recently too ( http://www.eclipse.org/forums/index.php/t/273929/ ).
Fist of: This problem occurs with chrome and firefox 9. It doesn't seem to be related to both bugs. We do not have a coolbar and 326123 handles only a chrome problem. I'll get back as soon as I have the request headers.
Also occurd in Safari (Windows)
Last time I saw this error, it was related to two different versions of javax.servlet in the target. What does your target look like?
Created attachment 209356 [details] Target of Application Hi Ralf Our target looks like this. Its a listing of all plugins deployed on the webserver (tomcat6). In the exploded jars no javax.serlvet.jar is contained.
There's a javax.servlet 2.5 contained in your list. In a WAR, no javax.servlet must be present, as the servlet container provides it. IIRC, Tomcat 6 contains servlet 3.0.
Thanks for this input. I'll remove javax.serlvet from our deployment. Although in our tomcat6 the javax.servlet is 2.5.
*** This bug has been marked as a duplicate of bug 354368 ***
