Hi, I have a problem with session replication because the class org.jboss.web.tomcat.session.ClusteredSession not synchronize the hash of attributes in writeObject method. I modified the class to synchronize this hash and resolved my problem. What can I do now about this? This problem was solved?
JBoss version: 3.2.3 (build: CVSTag=JBoss_3_2_3 date=200311301445) PS: Sorry by bad english! Darlan Oliveira Class implementation ------------------------- private void writeObject(java.io.ObjectOutputStream out) throws IOException { synchronized (attributes) { out.defaultWriteObject(); } } StackTrace ------------- 2004-03-10 11:53:13,765 ERROR [Thread-34][org.jboss.ejb.plugins.LogInterceptor] EJBException: javax.ejb.EJBException: java.util.ConcurrentModificationException at org.jboss.ha.httpsession.beanimpl.ejb.ClusteredHTTPSessionBeanImpl.serializeSession(ClusteredHTTPSessionBeanImpl.java:114) at org.jboss.ha.httpsession.beanimpl.ejb.ClusteredHTTPSessionBeanImpl.ejbStore(ClusteredHTTPSessionBeanImpl.java:52) at org.jboss.ejb.plugins.CMPPersistenceManager.storeEntity(CMPPersistenceManager.java:398) at org.jboss.ejb.EntityContainer.storeEntity(EntityContainer.java:713) at org.jboss.ejb.plugins.EntitySynchronizationInterceptor.invoke(EntitySynchronizationInterceptor.java:312) at org.jboss.ejb.plugins.EntityInstanceInterceptor.invoke(EntityInstanceInterceptor.java:163) at org.jboss.ejb.plugins.EntityLockInterceptor.invoke(EntityLockInterceptor.java:89) at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191) at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122) at org.jboss.ha.httpsession.beanimpl.ejb.ServerTCLInterceptor.invoke(ServerTCLInterceptor.java:40) at org.jboss.ejb.EntityContainer.internalInvoke(EntityContainer.java:490) at org.jboss.ejb.Container.invoke(Container.java:700) at sun.reflect.GeneratedMethodAccessor28.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBeanDispatcher.java:284) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:546) at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:101) at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:90) at org.jboss.ha.httpsession.beanimpl.ejb.ClientTCLInterceptor.invoke(ClientTCLInterceptor.java:46) at org.jboss.proxy.ejb.EntityInterceptor.invoke(EntityInterceptor.java:97) at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85) at $Proxy29.setSession(Unknown Source) at org.jboss.ha.httpsession.server.ClusteredHTTPSessionService.setHttpSession(ClusteredHTTPSessionService.java:112) at sun.reflect.GeneratedMethodAccessor31.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBeanDispatcher.java:284) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:546) at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177) at $Proxy178.setHttpSession(Unknown Source) at org.jboss.web.tomcat.session.ClusterManager.storeSession(ClusterManager.java:571) at org.jboss.web.tomcat.session.InstantSnapshotManager.snapshot(InstantSnapshotManager.java:38) at org.jboss.web.tomcat.session.ClusteredSessionValve.invoke(ClusteredSessionValve.java:89) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:65) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:263) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:360) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:604) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:562) at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:679) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619) at java.lang.Thread.run(Thread.java:534) 2004-03-10 11:53:13,796 WARN [Thread-34][org.jboss.web.tomcat.session.InstantSnapshotManager] Failed to replicate sessionID:6mj8gRoOeMMjba9HNeaZKQ**.worker2 javax.ejb.EJBException: Exception in setHttpSession: java.rmi.ServerException: EJBException:; nested exception is: javax.ejb.EJBException: java.util.ConcurrentModificationException at org.jboss.ha.httpsession.server.ClusteredHTTPSessionService.setHttpSession(ClusteredHTTPSessionService.java:116) at sun.reflect.GeneratedMethodAccessor31.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBeanDispatcher.java:284) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:546) at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177) at $Proxy178.setHttpSession(Unknown Source) at org.jboss.web.tomcat.session.ClusterManager.storeSession(ClusterManager.java:571) at org.jboss.web.tomcat.session.InstantSnapshotManager.snapshot(InstantSnapshotManager.java:38) at org.jboss.web.tomcat.session.ClusteredSessionValve.invoke(ClusteredSessionValve.java:89) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:65) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:263) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:360) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:604) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:562) at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:679) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619) at java.lang.Thread.run(Thread.java:534) <a href="http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3825566#3825566">View the original post</a> <a href="http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3825566>Reply to the post</a> ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. 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