[richfaces-issues] [JBoss JIRA] Updated: (RF-3631) ConcurrentModificationException during session serialization

[ http://jira.jboss.com/jira/browse/RF-3631?page=all ] Stanimir Stamenkov updated RF-3631: ----------------------------------- Attachment: test-cluster-session.ear Deploy into the the 'all' server configuration ($JBOSS_HOME/server/all/deploy), then navigate to <http://server/cluster-session/test.seam>;. Open the same page in 10-20 windows - by Ctrl+clicking the "Test" heading link in Firefox, for example. Watch the JBoss server console for a ConcurentModificationException error - give it enough time to happen (e.g. 5 minutes). Here's full stack trace of the exception I get with this example: 12:31:28,687 ERROR [JBossCacheService] externalizeSession(): exception occurred externalizing session SessionBasedClusteredSession[id: 2682B8A2A5A776CF13C4D86E33218059 lastAccessedTime: 1212571888609 version: 289 lastOutdated: 0] java.util.ConcurrentModificationException at org.apache.commons.collections.map.AbstractLinkedMap$LinkIterator.nextEntry(AbstractLinkedMap.java:555) at org.apache.commons.collections.map.AbstractLinkedMap$LinkMapIterator.next(AbstractLinkedMap.java:367) at org.apache.commons.collections.map.AbstractHashedMap.doWriteObject(AbstractHashedMap.java:1179) at org.apache.commons.collections.map.LRUMap.doWriteObject(LRUMap.java:380) at org.apache.commons.collections.map.LRUMap.writeObject(LRUMap.java:364) at sun.reflect.GeneratedMethodAccessor96.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1339) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302) at org.apache.commons.collections.map.AbstractHashedMap.doWriteObject(AbstractHashedMap.java:1180) at org.apache.commons.collections.map.LRUMap.doWriteObject(LRUMap.java:380) at org.apache.commons.collections.map.LRUMap.writeObject(LRUMap.java:364) at sun.reflect.GeneratedMethodAccessor96.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1339) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302) at java.util.concurrent.ConcurrentHashMap.writeObject(ConcurrentHashMap.java:1380) at sun.reflect.GeneratedMethodAccessor122.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1339) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302) at org.jboss.web.tomcat.service.session.SessionBasedClusteredSession.writeExternal(SessionBasedClusteredSession.java:175) at org.jboss.web.tomcat.service.session.JBossCacheService.externalizeSession(JBossCacheService.java:1027) at org.jboss.web.tomcat.service.session.JBossCacheService.putSession(JBossCacheService.java:316) at org.jboss.web.tomcat.service.session.JBossCacheClusteredSession.processSessionRepl(JBossCacheClusteredSession.java:121) at org.jboss.web.tomcat.service.session.JBossCacheManager.processSessionRepl(JBossCacheManager.java:1097) at org.jboss.web.tomcat.service.session.JBossCacheManager.storeSession(JBossCacheManager.java:652) at org.jboss.web.tomcat.service.session.InstantSnapshotManager.snapshot(InstantSnapshotManager.java:49) at org.jboss.web.tomcat.service.session.ClusteredSessionValve.invoke(ClusteredSessionValve.java:98) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) 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:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) at java.lang.Thread.run(Thread.java:595) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira