1 Reply Latest reply on Aug 26, 2008 1:59 AM by sparthan

Generating a NotSerializableException

sparthan Aug 25, 2008 10:34 AM

Hi all,

I want to give clustering support for a small application and it was not successfully done and is generating the following exception stack trace.

java.io.NotSerializableException: nextapp.echo2.webrender.Connection
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1527)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1492)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1410)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1168)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1527)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1492)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1410)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1168)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:344)
at java.util.concurrent.ConcurrentHashMap.writeObject(ConcurrentHashMap.java:1284)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:623)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:963)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1479)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1410)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1168)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:344)
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.service.session.JvmRouteValve.invoke(JvmRouteValve.java:84)
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.ajp.AjpProcessor.process(AjpProcessor.java:437)
at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:366)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
at java.lang.Thread.run(Thread.java:675)

Please let me know how is this ObjectOutputStream.java is stopping something to be Serialized.

Thank you in advance!!

Sri..

1. Re: Generating a NotSerializableException

sparthan Aug 26, 2008 1:59 AM (in response to sparthan)

Hi all,
As I have observered that the "Connection" is not serialized, I ve modified that. And now, I found a new Exception stack trace:

11:22:51,362 ERROR [JBossCacheService] externalizeSession(): exception occurred externalizing session SessionBasedClusteredSession[id: jFdwj9uBb2SnaFbZjiTSaQ**.node1 lastAccessedTime: 1219729960683 version: 17 lastOutdated: 0]
java.io.NotSerializableException: org.apache.catalina.connector.RequestFacade
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at java.util.concurrent.ConcurrentHashMap.writeObject(ConcurrentHashMap.java:1247)
at sun.reflect.GeneratedMethodAccessor96.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
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.service.session.JvmRouteValve.invoke(JvmRouteValve.java:84)
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.ajp.AjpProcessor.process(AjpProcessor.java:437)
at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:366)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
at java.lang.Thread.run(Thread.java:619)

Please discuss and continue the discussion , If anyone identified this

Thank you!

Sri
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