We are using a modified 4.0.4GA. StatfullRemoteProxyFactory, 
StatefullClusterProxyFactory, StatlessRemoteProxyFactory, 
StatelessClusterProxyFactory,RemoteProxyFactory and InvokerLocator have been 
changed. They now fetch the bindURL from a System.property, since we needed to 
use the host name. The invoker locator is changed (Mehtod resolveHost and 
Constructor) to be able to use the host name and not look it up to the ip. Also 
we use the ServerServletInvoker so that we can go over Http.

On maschine 1 a Statefull Bean is invoked, on maschine 2 the second invokation 
of the SFSB will be received cause to RoundRobin.
This results in the following warning on the second maschine

  | 10:25:44,281 WARN  [SessionFactoryObjectFactory] Not found: 
2c9096850bad968e010b
  | ad9899550001
  | 

As a result, both SFSB are invoked on the first maschine.
After time x the SFSB will be serialized. This causes this error on the second 
maschine, since there is nothing there to evict:


  | 10:31:51,468 ERROR [STDERR] java.lang.NullPointerException
  | 10:31:51,468 ERROR [STDERR]     at 
org.jboss.ejb3.cache.tree.StatefulEvictionPol
  | icy.evict(StatefulEvictionPolicy.java:48)
  | 10:31:51,468 ERROR [STDERR]     at 
org.jboss.cache.eviction.LRUAlgorithm.evictCa
  | cheNode(LRUAlgorithm.java:197)
  | 10:31:51,468 ERROR [STDERR]     at 
org.jboss.cache.eviction.LRUAlgorithm.prune(L
  | RUAlgorithm.java:303)
  | 10:31:51,468 ERROR [STDERR]     at 
org.jboss.cache.eviction.LRUAlgorithm.process
  | (LRUAlgorithm.java:55)
  | 10:31:51,468 ERROR [STDERR]     at 
org.jboss.cache.eviction.EvictionTimerTask.ru
  | n(EvictionTimerTask.java:37)
  | 10:31:51,468 ERROR [STDERR]     at 
java.util.TimerThread.mainLoop(Timer.java:512
  | )
  | 10:31:51,468 ERROR [STDERR]     at java.util.TimerThread.run(Timer.java:462)
  | 

Complete Error in the server.log which mainly shows that the hibernate 
SessionFactoryObjectFactory cant lookup the object:

  | 2006-06-07 10:38:22,343 INFO  [org.jboss.system.server.Server] JBoss (MX 
MicroKernel) [4.0.4.GA (build: CVSTag=JBoss_4_0_4_GA date=200605221016)] 
Started in 36s:609ms
  | 2006-06-07 10:38:22,468 DEBUG [org.jboss.cache.eviction.RegionManager] 
getRegions(): size of region 2
  | 2006-06-07 10:45:49,484 DEBUG 
[org.jboss.resource.connectionmanager.IdleRemover] run: IdleRemover notifying 
pools, interval: 450000
  | 2006-06-07 10:46:24,046 DEBUG 
[org.hibernate.impl.SessionFactoryObjectFactory] lookup: 
uid=2c9096850bad968e010bad9899550001
  | 2006-06-07 10:46:24,046 WARN  
[org.hibernate.impl.SessionFactoryObjectFactory] Not found: 
2c9096850bad968e010bad9899550001
  | 2006-06-07 10:46:24,046 DEBUG 
[org.hibernate.impl.SessionFactoryObjectFactory] [EMAIL PROTECTED]
  | 2006-06-07 10:46:24,046 DEBUG 
[org.jboss.remoting.transport.servlet.ServletServerInvoker] Error thrown 
calling invoke on server invoker.
  | org.jboss.ejb3.stateful.ForwardId: java.lang.RuntimeException: 
java.io.IOException
  |     at 
org.jboss.ejb3.stateful.StatefulContainer.dynamicInvoke(StatefulContainer.java:314)
  |     at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
  |     at 
org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
  |     at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
  |     at 
org.jboss.remoting.transport.servlet.ServletServerInvoker.processRequest(ServletServerInvoker.java:211)
  |     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 
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  |     at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  |     at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
  |     at 
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
  |     at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |     at 
javax.management.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:201)
  |     at $Proxy62.processRequest(Unknown Source)
  |     at 
org.jboss.remoting.transport.servlet.web.ServerInvokerServlet.processRequest(ServerInvokerServlet.java:139)
  |     at 
org.jboss.remoting.transport.servlet.web.ServerInvokerServlet.doPost(ServerInvokerServlet.java:168)
  |     at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
  |     at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
  |     at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
  |     at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |     at 
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  |     at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |     at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |     at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  |     at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
  |     at 
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
  |     at 
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
  |     at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
  |     at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
  |     at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
  |     at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
  |     at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
  |     at 
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
  |     at 
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
  |     at 
org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
  |     at java.lang.Thread.run(Thread.java:595)
  | Caused by: java.lang.RuntimeException: java.io.IOException
  |     at 
org.jboss.ejb3.stateful.StatefulBeanContext.extractBeanAndInterceptors(StatefulBeanContext.java:365)
  |     at 
org.jboss.ejb3.stateful.StatefulBeanContext.getInstance(StatefulBeanContext.java:309)
  |     at 
org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:75)
  |     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |     at 
org.jboss.aspects.remoting.ReplicantsManagerInterceptor.invoke(ReplicantsManagerInterceptor.java:51)
  |     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |     at 
org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78)
  |     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |     at 
org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
  |     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |     at 
org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  |     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |     at 
org.jboss.ejb3.stateful.StatefulContainer.dynamicInvoke(StatefulContainer.java:308)
  |     ... 37 more
  | Caused by: java.io.IOException
  |     at 
org.jboss.serial.persister.RegularObjectPersister.readSlotWithMethod(RegularObjectPersister.java:107)
  |     at 
org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.java:269)
  |     at 
org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:241)
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:411)
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:81)
  |     at 
org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataContainer.java:639)
  |     at 
org.jboss.serial.persister.ProxyPersister.readData(ProxyPersister.java:66)
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:411)
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:81)
  |     at 
org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataContainer.java:639)
  |     at 
org.jboss.serial.persister.RegularObjectPersister.readSlotWithFields(RegularObjectPersister.java:353)
  |     at 
org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.java:273)
  |     at 
org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:241)
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:411)
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:81)
  |     at 
org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataContainer.java:639)
  |     at 
org.jboss.serial.persister.ArrayPersister.readObjectArray(ArrayPersister.java:196)
  |     at 
org.jboss.serial.persister.ArrayPersister.readData(ArrayPersister.java:172)
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:411)
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:81)
  |     at 
org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataContainer.java:639)
  |     at 
org.jboss.serial.io.JBossObjectInputStream.readObjectOverride(JBossObjectInputStream.java:165)
  |     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:333)
  |     at org.jboss.serial.io.MarshalledObject.get(MarshalledObject.java:68)
  |     at 
org.jboss.ejb3.stateful.StatefulBeanContext.extractBeanAndInterceptors(StatefulBeanContext.java:342)
  |     ... 49 more
  | Caused by: java.lang.reflect.InvocationTargetException
  |     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 
org.jboss.serial.persister.RegularObjectPersister.readSlotWithMethod(RegularObjectPersister.java:103)
  |     ... 73 more
  | Caused by: java.io.IOException
  |     at 
org.jboss.serial.persister.RegularObjectPersister.readSlotWithMethod(RegularObjectPersister.java:107)
  |     at 
org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.java:269)
  |     at 
org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:241)
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:411)
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:81)
  |     at 
org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataContainer.java:639)
  |     at 
org.jboss.serial.persister.RegularObjectPersister.readSlotWithFields(RegularObjectPersister.java:353)
  |     at 
org.jboss.serial.persister.ObjectInputStreamProxy.defaultReadObject(ObjectInputStreamProxy.java:78)
  |     at 
org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.readObject(ThreadLocalSessionContext.java:334)
  |     ... 78 more
  | Caused by: java.lang.reflect.InvocationTargetException
  |     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 
org.jboss.serial.persister.RegularObjectPersister.readSlotWithMethod(RegularObjectPersister.java:103)
  |     ... 86 more
  | Caused by: java.io.InvalidObjectException: could not locate session factory 
by uuid [2c9096850bad968e010bad9899550001] during session deserialization
  |     at 
org.hibernate.impl.SessionFactoryImpl.deserialize(SessionFactoryImpl.java:1038)
  |     at org.hibernate.impl.SessionImpl.readObject(SessionImpl.java:1866)
  |     ... 91 more
  |             
        
        
Sometimes also a split of the cluster accures when invoking the SFSB (not sure 
if this is do to the "heavy load" when invoking the SFSB on node one, incorrect 
communication or what ever, just thought I would mention it).


  | 12:37:15,796 INFO  [TreeCache] viewAccepted(): [mc0430-204:1192|2] 
[mc0430-204:1
  | 192]
  | 12:37:16,531 INFO  [TreeCache] viewAccepted(): [mc0430-204:1189|2] 
[mc0430-204:1
  | 189]
  | 12:37:22,609 INFO  [TreeCache] viewAccepted(): [mc0430-204:1178|2] 
[mc0430-204:1
  | 178]
  | 12:37:24,031 WARN  [FD] ping_dest is null: members=[mc0430-116:1361 
(additional
  | data: 16 bytes), mc0430-204:1185 (additional data: 17 bytes)], 
pingable_mbrs=[mc
  | 0430-204:1185 (additional data: 17 bytes)], local_addr=mc0430-204:1185 
(addition
  | al data: 17 bytes)
  | 12:37:24,531 INFO  [DefaultPartition] Suspected member: mc0430-116:1361 
(additio
  | nal data: 16 bytes)
  | 12:37:24,531 INFO  [DefaultPartition] New cluster view for partition 
DefaultPart
  | ition (id: 2, delta: -1) : [192.168.22.50:1099]
  | 12:37:24,531 INFO  [DefaultPartition] I am (192.168.22.50:1099) received 
membersh
  | ipChanged event:
  | 12:37:24,531 INFO  [DefaultPartition] Dead members: 1 ([192.168.22.5:1099])
  | 12:37:24,531 INFO  [DefaultPartition] New Members : 0 ([])
  | 12:37:24,531 INFO  [DefaultPartition] All Members : 1 ([192.168.22.50:1099])
  | 12:37:25,093 INFO  [TomcatDeployer] deploy, ctxPath=/jbossmq-httpil, 
warUrl=.../
  | deploy-hasingleton/jms/jbossmq-httpil.sar/jbossmq-httpil.war/
  | 12:37:25,468 INFO  [A] Bound to JNDI name: queue/A
  | 12:37:25,468 INFO  [B] Bound to JNDI name: queue/B
  | 12:37:25,468 INFO  [C] Bound to JNDI name: queue/C
  | 12:37:25,484 INFO  [D] Bound to JNDI name: queue/D
  | 12:37:25,484 INFO  [ex] Bound to JNDI name: queue/ex
  | 12:37:25,500 INFO  [testTopic] Bound to JNDI name: topic/testTopic
  | 12:37:25,500 INFO  [securedTopic] Bound to JNDI name: topic/securedTopic
  | 12:37:25,500 INFO  [testDurableTopic] Bound to JNDI name: 
topic/testDurableTopic
  | 
  | 12:37:25,515 INFO  [testQueue] Bound to JNDI name: queue/testQueue
  | 12:37:25,562 INFO  [UILServerILService] JBossMQ UIL service available at : 
mc043
  | 0-204.somewhere.de/192.168.22.50:8093
  | 12:37:25,625 INFO  [DLQ] Bound to JNDI name: queue/DLQ
  | 12:37:43,421 INFO  [TreeCache] viewAccepted(): [mc0430-204:1189|3] 
[mc0430-204:1
  | 189, mc0430-116:1397]
  | 12:37:43,421 INFO  [TreeCache] viewAccepted(): [mc0430-204:1192|3] 
[mc0430-204:1
  | 192, mc0430-116:1398]
  | 12:37:43,484 INFO  [TreeCache] viewAccepted(): [mc0430-204:1178|3] 
[mc0430-204:1
  | 178, mc0430-116:1396]
  | 12:37:43,765 INFO  [TreeCache] locking the / subtree to return the 
in-memory (tr
  | ansient) state
  | 12:37:43,765 INFO  [TreeCache] locking the / subtree to return the 
in-memory (tr
  | ansient) state
  | 12:37:43,781 INFO  [TreeCache] locking the / subtree to return the 
in-memory (tr
  | ansient) state
  | 12:37:43,781 INFO  [StateTransferGenerator_1241] returning the state for 
tree ro
  | oted in /(4096 bytes)
  | 12:37:43,781 INFO  [StateTransferGenerator_1241] returning the state for 
tree ro
  | oted in /(1024 bytes)
  | 12:37:43,781 INFO  [StateTransferGenerator_1241] returning the state for 
tree ro
  | oted in /(1024 bytes)
  | /12:37:45,062 INFO  [DefaultPartition] New cluster view for partition 
DefaultPart
  | ition (id: 3, delta: 1) : [192.168.22.50:1099, 192.168.22.5:1099]
  | 12:37:45,062 INFO  [DefaultPartition] I am (192.168.22.50:1099) received 
membersh
  | ipChanged event:
  | 12:37:45,062 INFO  [DefaultPartition] Dead members: 0 ([])
  | 12:37:45,062 INFO  [DefaultPartition] New Members : 1 ([192.168.22.5:1099])
  | 12:37:45,062 INFO  [DefaultPartition] All Members : 2 ([192.168.22.50:1099, 
172.1
  | 6.22.5:1099])
  | 12:40:25,625 WARN  [SessionFactoryObjectFactory] Not found: 
2c9096850badffa2010b
  | ae021e840001
  | 



Some more detailed logg shows a littel bit more info to the problem, but not 
its root:

  | 2006-06-07 13:23:30,718 DEBUG [org.hibernate.pretty.Printer] 
de.somewhere.test.persi.NatPers{Vorname=Martina, Nachname=Schoßig, Id=97522}
  | 
  | 2006-06-07 13:23:30,718 DEBUG [org.hibernate.pretty.Printer] more......
  | 
  | 2006-06-07 13:23:30,718 DEBUG [org.hibernate.transaction.JDBCTransaction] 
committed JDBC Connection
  | 
  | 2006-06-07 13:23:30,718 DEBUG [org.hibernate.jdbc.ConnectionManager] 
aggressively releasing JDBC connection
  | 
  | 2006-06-07 13:23:30,718 DEBUG [org.hibernate.jdbc.ConnectionManager] 
releasing JDBC connection [ (open PreparedStatements: 0, globally: 0) (open 
ResultSets: 0, globally: 0)]
  | 
  | 2006-06-07 13:23:30,734 DEBUG [org.hibernate.impl.SessionFactoryImpl] 
serializing: 2c9096850bae3a54010bae3b62bb0001
  | 
  | 2006-06-07 13:23:36,218 DEBUG [org.jboss.remoting.marshal.MarshalFactory] 
Tried to find marshaller from locator by both data type and class name but was 
unsuccessful.  Will try to load it from remote server.
  | 
  | 2006-06-07 13:23:43,421 DEBUG [org.jboss.remoting.marshal.MarshalFactory] 
Could not find unmarshaller by data type ('null').  Will try to load 
dynamically.
  | 
  | 2006-06-07 13:23:43,437 DEBUG 
[org.jboss.remoting.transport.servlet.ServletServerInvoker] Error thrown 
calling invoke on server invoker.
  | 
  | org.jboss.ejb3.stateful.ForwardId: javax.ejb.EJBNoSuchObjectException: 
Could not find Stateful bean: 4sgm1e-z8wo26-eo5l8emd-1-eo5lfdx9-c
  | 
  |     at 
org.jboss.ejb3.stateful.StatefulContainer.dynamicInvoke(StatefulContainer.java:314)
  | 
  |     at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
  | 
  |     at 
org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
  | 
  |     at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
  | 
  |     at 
org.jboss.remoting.transport.servlet.ServletServerInvoker.processRequest(ServletServerInvoker.java:211)
  | 
  |     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 
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  | 
  |     at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  | 
  |     at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
  | 
  |     at 
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
  | 
  |     at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  | 
  |     at 
javax.management.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:201)
  | 
  |     at $Proxy62.processRequest(Unknown Source)
  | 
  |     at 
org.jboss.remoting.transport.servlet.web.ServerInvokerServlet.processRequest(ServerInvokerServlet.java:139)
  | 
  |     at 
org.jboss.remoting.transport.servlet.web.ServerInvokerServlet.doPost(ServerInvokerServlet.java:168)
  | 
  |     at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
  | 
  |     at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
  | 
  |     at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
  | 
  |     at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 
  |     at 
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  | 
  |     at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  | 
  |     at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 
  |     at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  | 
  |     at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
  | 
  |     at 
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
  | 
  |     at 
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
  | 
  |     at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
  | 
  |     at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
  | 
  |     at 
org.jboss.web.tomcat.tc5.sso.ClusteredSingleSignOn.invoke(ClusteredSingleSignOn.java:461)
  | 
  |     at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
  | 
  |     at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
  | 
  |     at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
  | 
  |     at 
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
  | 
  |     at 
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
  | 
  |     at 
org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
  | 
  |     at java.lang.Thread.run(Thread.java:595)
  | 
  | Caused by: javax.ejb.EJBNoSuchObjectException: Could not find Stateful 
bean: 4sgm1e-z8wo26-eo5l8emd-1-eo5lfdx9-c
  | 
  |     at 
org.jboss.ejb3.cache.tree.StatefulTreeCache.get(StatefulTreeCache.java:99)
  | 
  |     at 
org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:59)
  | 
  |     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 
  |     at 
org.jboss.aspects.remoting.ReplicantsManagerInterceptor.invoke(ReplicantsManagerInterceptor.java:51)
  | 
  |     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 
  |     at 
org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78)
  | 
  |     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 
  |     at 
org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
  | 
  |     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 
  |     at 
org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  | 
  |     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 
  |     at 
org.jboss.ejb3.stateful.StatefulContainer.dynamicInvoke(StatefulContainer.java:308)
  | 
  |     ... 38 more
  | 
  | 2006-06-07 13:23:43,437 DEBUG [org.jboss.remoting.marshal.MarshalFactory] 
Tried to find marshaller from locator by both data type and class name but was 
unsuccessful.  Will try to load it from remote server.
  | 
  | 2006-06-07 13:25:44,593 DEBUG [org.jboss.remoting.marshal.MarshalFactory] 
Could not find unmarshaller by data type ('null').  Will try to load 
dynamically.
  | 
  | 2006-06-07 13:25:44,640 DEBUG 
[org.hibernate.impl.SessionFactoryObjectFactory] lookup: 
uid=2c9096b20bae36da010bae37b9a90001
  | 
  | 2006-06-07 13:25:44,640 WARN  
[org.hibernate.impl.SessionFactoryObjectFactory] Not found: 
2c9096b20bae36da010bae37b9a90001
  | 
  | 2006-06-07 13:25:44,718 DEBUG 
[org.hibernate.impl.SessionFactoryObjectFactory] [EMAIL PROTECTED], [EMAIL 
PROTECTED]
  | 
  | 2006-06-07 13:25:44,718 DEBUG 
[org.jboss.remoting.transport.servlet.ServletServerInvoker] Error thrown 
calling invoke on server invoker.
  | 
  | org.jboss.ejb3.stateful.ForwardId: java.lang.RuntimeException: 
java.io.IOException
  | 
  |     at 
org.jboss.ejb3.stateful.StatefulContainer.dynamicInvoke(StatefulContainer.java:314)
  | 
  |     at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
  | 
  |     at 
org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
  | 
  |     at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
  | 
  |     at 
org.jboss.remoting.transport.servlet.ServletServerInvoker.processRequest(ServletServerInvoker.java:211)
  | 
  |     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 
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  | 
  |     at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  | 
  |     at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
  | 
  |     at 
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
  | 
  |     at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  | 
  |     at 
javax.management.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:201)
  | 
  |     at $Proxy62.processRequest(Unknown Source)
  | 
  |     at 
org.jboss.remoting.transport.servlet.web.ServerInvokerServlet.processRequest(ServerInvokerServlet.java:139)
  | 
  |     at 
org.jboss.remoting.transport.servlet.web.ServerInvokerServlet.doPost(ServerInvokerServlet.java:168)
  | 
  |     at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
  | 
  |     at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
  | 
  |     at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
  | 
  |     at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 
  |     at 
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  | 
  |     at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  | 
  |     at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 
  |     at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  | 
  |     at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
  | 
  |     at 
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
  | 
  |     at 
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
  | 
  |     at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
  | 
  |     at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
  | 
  |     at 
org.jboss.web.tomcat.tc5.sso.ClusteredSingleSignOn.invoke(ClusteredSingleSignOn.java:461)
  | 
  |     at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
  | 
  |     at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
  | 
  |     at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
  | 
  |     at 
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
  | 
  |     at 
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
  | 
  |     at 
org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
  | 
  |     at java.lang.Thread.run(Thread.java:595)
  | 
  | Caused by: java.lang.RuntimeException: java.io.IOException
  | 
  |     at 
org.jboss.ejb3.stateful.StatefulBeanContext.extractBeanAndInterceptors(StatefulBeanContext.java:365)
  | 
  |     at 
org.jboss.ejb3.stateful.StatefulBeanContext.getInstance(StatefulBeanContext.java:309)
  | 
  |     at 
org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:75)
  | 
  |     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 
  |     at 
org.jboss.aspects.remoting.ReplicantsManagerInterceptor.invoke(ReplicantsManagerInterceptor.java:51)
  | 
  |     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 
  |     at 
org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78)
  | 
  |     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 
  |     at 
org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
  | 
  |     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 
  |     at 
org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  | 
  |     at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  | 
  |     at 
org.jboss.ejb3.stateful.StatefulContainer.dynamicInvoke(StatefulContainer.java:308)
  | 
  |     ... 38 more
  | 
  | Caused by: java.io.IOException
  | 
  |     at 
org.jboss.serial.persister.RegularObjectPersister.readSlotWithMethod(RegularObjectPersister.java:107)
  | 
  |     at 
org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.java:269)
  | 
  |     at 
org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:241)
  | 
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:411)
  | 
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:81)
  | 
  |     at 
org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataContainer.java:639)
  | 
  |     at 
org.jboss.serial.persister.ProxyPersister.readData(ProxyPersister.java:66)
  | 
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:411)
  | 
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:81)
  | 
  |     at 
org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataContainer.java:639)
  | 
  |     at 
org.jboss.serial.persister.RegularObjectPersister.readSlotWithFields(RegularObjectPersister.java:353)
  | 
  |     at 
org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.java:273)
  | 
  |     at 
org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:241)
  | 
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:411)
  | 
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:81)
  | 
  |     at 
org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataContainer.java:639)
  | 
  |     at 
org.jboss.serial.persister.ArrayPersister.readObjectArray(ArrayPersister.java:196)
  | 
  |     at 
org.jboss.serial.persister.ArrayPersister.readData(ArrayPersister.java:172)
  | 
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:411)
  | 
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:81)
  | 
  |     at 
org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataContainer.java:639)
  | 
  |     at 
org.jboss.serial.io.JBossObjectInputStream.readObjectOverride(JBossObjectInputStream.java:165)
  | 
  |     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:333)
  | 
  |     at org.jboss.serial.io.MarshalledObject.get(MarshalledObject.java:68)
  | 
  |     at 
org.jboss.ejb3.stateful.StatefulBeanContext.extractBeanAndInterceptors(StatefulBeanContext.java:342)
  | 
  |     ... 50 more
  | 
  | Caused by: java.lang.reflect.InvocationTargetException
  | 
  |     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 
org.jboss.serial.persister.RegularObjectPersister.readSlotWithMethod(RegularObjectPersister.java:103)
  | 
  |     ... 74 more
  | 
  | Caused by: java.io.IOException
  | 
  |     at 
org.jboss.serial.persister.RegularObjectPersister.readSlotWithMethod(RegularObjectPersister.java:107)
  | 
  |     at 
org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.java:269)
  | 
  |     at 
org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:241)
  | 
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:411)
  | 
  |     at 
org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:81)
  | 
  |     at 
org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectInput.readObject(DataContainer.java:639)
  | 
  |     at org.jboss.s
  | 

I have looked over most of the ejb3/remoting/cluster code concerning the 
sessions replication/proxy creation to find a spot where the modifikations 
could cause this problem, but am not able to identify any thing specific.
 From the loggs it seems like the ServletServerInvoker trys to do an invocation 
which leads to the hibernate.implSessionFactoryImpl trieing to serialize the 
SFSB und then the Marshall Factory to use the InvokerLocator to determin the 
Marshaller/Unmarshaller, which goes bad, for what ever reason. I checked the 
cluster log, but there every thing seem fine, which kind of wonders me.  I 
thought I would find a spot where It would complain about being unable to 
replicate the state or give a hint to some kind of communication failure.
I would apriciate some hints on where to look for the cause of this or how to 
get closer to the root.

Thx !

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