Tomcat automatically serializes session on shutdown and startup on Unix

[Pek Lee <cl...@yahoo.ca>]

Hi there,

I have been having some trouble sending this email to this user group.  So if you have receive this more than once, sorry!  And if you have replied to it, please forward it to me again as I have not receive any respond so far...Thanks!

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I am running in to known java.io.NotSerializableException issue when Tomcat (4.1.27) shutdown or startup.

The strange thing is that I do not get this error when running the application on Tomcat/Windows but seem to be encountering the problem in Tomcat/HP-UX 11i. Does the Tomcat shutdown or startup differently in Windows vs. Unix? To workaround that, I basically have to set the Manager component to have pathname="null" and saveOnRestart="false" in server.xml.

Could anyone explain the reason I am seeing two different behaviours?

LOG:

2004-11-25 12:49:08 StandardManager[/dcm] IOException while loading persisted sessions: java.io.WriteAbortedEx

ception: writing aborted; java.io.NotSerializableException: com.documentum.web.form.FormHistory

java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.documentum.web.form.Form

History

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1278)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:324)

at java.util.HashMap.readObject(HashMap.java:986)

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:324)

at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:824)

at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1746)

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1646)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:324)

at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1369)

at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:864)

at org.apache.catalina.session.StandardManager.load(StandardManager.java:440)

at org.apache.catalina.session.StandardManager.start(StandardManager.java:655)

at org.apache.catalina.core.StandardContext.start(StandardContext.java:3571)

at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:821)

at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)

at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:579)

at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:307)

at org.apache.catalina.core.StandardHost.install(StandardHost.java:772)

at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:559)

at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:401)

at org.apache.catalina.startup.HostConfig.start(HostConfig.java:718)

at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:358)

at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:166)

at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1196)

at org.apache.catalina.core.StandardHost.start(StandardHost.java:738)

at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1188)

at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:347)

at org.apache.catalina.core.StandardService.start(StandardService.java:497)

at org.apache.catalina.core.StandardServer.start(StandardServer.java:2190)

at org.apache.catalina.startup.Catalina.start(Catalina.java:512)

at org.apache.catalina.startup.Catalina.execute(Catalina.java:400)

at org.apache.catalina.startup.Catalina.process(Catalina.java:180)

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:324)

at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:203)

 



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