2 Replies Latest reply on Mar 22, 2010 12:19 AM by Tim Evers

    Strange ConcurrentModificationException in 2.2.0

    Dumitru Ciubenco Newbie

      Hi,


      I'm using seam 2.2.0GA with Icefaces 1.8.2
      I have some abstract components with CONVERSATION scope, implementation classes which extends my base classes works fine, but for one component I have strange exception on rendering this view. I was looking for similar problems and I have found a lot of similar exceptions in JIRA but unfortunately I don't think that this is my case. I have seen similar exception on autologin(I don't use autologin). I have disabled debug mode, and my server is not under heavy load. So I really don't have any clue why this happening.


      What is special in my application is that I'm using (Manager.instance().switchConversation(id), Conversation.instance().beginNested();) because @Begin annotation is not inherited.
      My exception is thrown before my view is rendered:



      java.util.ConcurrentModificationException
              at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
              at java.util.HashMap$EntryIterator.next(HashMap.java:834)
              at java.util.HashMap$EntryIterator.next(HashMap.java:832)
              at org.jboss.seam.contexts.ServerConversationContext.flush(ServerConversationContext.java:299)
              at org.jboss.seam.contexts.Contexts.flushAndDestroyContexts(Contexts.java:371)
              at org.jboss.seam.contexts.FacesLifecycle.endRequest(FacesLifecycle.java:129)
              at org.jboss.seam.jsf.SeamPhaseListener.afterRenderResponse(SeamPhaseListener.java:514)
              at org.jboss.seam.jsf.SeamPhaseListener.afterServletPhase(SeamPhaseListener.java:249)
              at org.jboss.seam.jsf.SeamPhaseListener.afterPhase(SeamPhaseListener.java:196)
              at com.sun.faces.lifecycle.Phase.handleAfterPhase(Phase.java:175)
              at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:114)
              at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
              at com.icesoft.faces.webapp.http.core.JsfLifecycleExecutor.apply(JsfLifecycleExecutor.java:19)
              at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.renderCycle(ReceiveSendUpdates.java:132)
              at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.service(ReceiveSendUpdates.java:74)
              at com.icesoft.faces.webapp.http.core.RequestVerifier.service(RequestVerifier.java:31)
              at com.icesoft.faces.webapp.http.common.standard.PathDispatcherServer.service(PathDispatcherServer.java:24)
              at com.icesoft.faces.webapp.http.servlet.BasicAdaptingServlet.service(BasicAdaptingServlet.java:16)
              at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:23)
              at com.icesoft.faces.webapp.http.servlet.SessionDispatcher.service(SessionDispatcher.java:53)
              at com.icesoft.faces.webapp.http.servlet.SessionVerifier.service(SessionVerifier.java:26)
              at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:23)
              at com.icesoft.faces.webapp.http.servlet.MainServlet.service(MainServlet.java:131)
              at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
              at com.icesoft.faces.webapp.xmlhttp.BlockingServlet.service(BlockingServlet.java:56)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
              at org.jboss.seam.web.RewriteFilter.doFilter(RewriteFilter.java:63)
              at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
              at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73)
              at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73)
              at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73)
              at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73)
              at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73)
              at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)
              at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
              at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
              at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
              at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
              at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
              at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
              at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
              at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
              at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
              at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
              at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
              at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
              at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
              at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
              at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
              at java.lang.Thread.run(Thread.java:619)
      09:41:19,357 ERROR [SeamPhaseListener] swallowing exception
      java.util.ConcurrentModificationException
              at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
              at java.util.HashMap$EntryIterator.next(HashMap.java:834)
              at java.util.HashMap$EntryIterator.next(HashMap.java:832)
              at org.jboss.seam.contexts.ServerConversationContext.flush(ServerConversationContext.java:299)
              at org.jboss.seam.contexts.Contexts.flushAndDestroyContexts(Contexts.java:371)
              at org.jboss.seam.contexts.FacesLifecycle.endRequest(FacesLifecycle.java:129)
              at org.jboss.seam.jsf.SeamPhaseListener.afterRenderResponse(SeamPhaseListener.java:514)
              at org.jboss.seam.jsf.SeamPhaseListener.afterServletPhase(SeamPhaseListener.java:249)
              at org.jboss.seam.jsf.SeamPhaseListener.afterPhase(SeamPhaseListener.java:196)
              at com.sun.faces.lifecycle.Phase.handleAfterPhase(Phase.java:175)
              at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:114)
              at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
              at com.icesoft.faces.webapp.http.core.JsfLifecycleExecutor.apply(JsfLifecycleExecutor.java:19)
              at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.renderCycle(ReceiveSendUpdates.java:132)
              at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.service(ReceiveSendUpdates.java:74)
              at com.icesoft.faces.webapp.http.core.RequestVerifier.service(RequestVerifier.java:31)
              at com.icesoft.faces.webapp.http.common.standard.PathDispatcherServer.service(PathDispatcherServer.java:24)
              at com.icesoft.faces.webapp.http.servlet.BasicAdaptingServlet.service(BasicAdaptingServlet.java:16)
              at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:23)
              at com.icesoft.faces.webapp.http.servlet.SessionDispatcher.service(SessionDispatcher.java:53)
              at com.icesoft.faces.webapp.http.servlet.SessionVerifier.service(SessionVerifier.java:26)
              at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:23)
              at com.icesoft.faces.webapp.http.servlet.MainServlet.service(MainServlet.java:131)
              at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
              at com.icesoft.faces.webapp.xmlhttp.BlockingServlet.service(BlockingServlet.java:56)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
              at org.jboss.seam.web.RewriteFilter.doFilter(RewriteFilter.java:63)
              at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
              at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73)
              at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73)
              at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73)
              at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73)
              at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73)
              at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)
              at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
              at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
              at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
              at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
              at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
              at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
              at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
              at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
              at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
              at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
              at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
              at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
              at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
              at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
              at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
              at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
              at java.lang.Thread.run(Thread.java:619)
      
      






      Any help will be appreciated.


      Thanks, Dima