Re: java.io.NotSerializableException: com.ibatis.db.sqlmap.LazyLoadList

Wed, 23 Aug 2006 10:32:55 -0700

I think the problem is in the underlying jdk classes used by LazyLoadList... seems like someone here told me that before. 

b

Chris Lamey wrote:

Looks to me like com.ibatis.db.sqlmap.LazyLoadList isn't Serializable,
so you can't use it in your distributed cache.  If you have the 1.x
iBATIS source around, you could verify that.

I'm not sure why you're thinking java.lang.Object is the culprit...the
method java.util.ArrayList.writeObject is overloaded for serialization,
it doesn't mean it's trying to write out java.lang.Object.

I do know 1.x isn't supported anymore and so you're likely to have
trouble getting help.

However, I don't know 1.x at all...is there a way to turn lazy loading
off?

On Wed, 2006-08-23 at 13:10 -0400, Khanna, Vijay (GE, Corporate,
consultant) wrote:

Hi,
Any help on this issue please ? Thanks, Vijay 

______________________________________________________________________
From: Khanna, Vijay (GE, Corporate, consultant) Sent: Wednesday, August 23, 2006 10:22 AM 
To: [email protected]
Subject: java.io.NotSerializableException:
com.ibatis.db.sqlmap.LazyLoadList



Hello,
We are using Ibatis 1.x along with JBoss cache. Now when the 
application is run in clustered environment and the Cache & session
replication happens, we are getting an error from Ibatis.
"java.io.NotSerializableException:
com.ibatis.db.sqlmap.LazyLoadList" . I checked within the application
code to find if we are using any instance of java.lang.Object, but
could not find any... From the stacktrace below, it seems that and instance of 
'java.lang.Object' is present in the list and thats where the problem
is...
I checked Ibatis 2.x and noticed this problem does not occur. But due 
to some reasons, we do not wish to move to 2.x but would like a
solution for this. Help from the Ibatis's Gurus appreciated !
Heres the detailed stack.. 10:14:16,764 INFO [STDOUT] java.io.NotSerializableException: 
com.ibatis.db.sqlmap.LazyLoadList

10:14:16,764 INFO [STDOUT] at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1054)

10:14:16,764 INFO [STDOUT] at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1332)

10:14:16,764 INFO [STDOUT] at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1304)

10:14:16,764 INFO [STDOUT] at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1247)

10:14:16,780 INFO [STDOUT] at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052)

10:14:16,780 INFO [STDOUT] at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1332)

10:14:16,780 INFO [STDOUT] at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1304)

10:14:16,780 INFO [STDOUT] at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1247)

10:14:16,780 INFO [STDOUT] at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052)

10:14:16,780 INFO [STDOUT] at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278)

10:14:16,780 INFO [STDOUT] at
java.util.ArrayList.writeObject(ArrayList.java:529)

10:14:16,780 INFO [STDOUT] at
sun.reflect.GeneratedMethodAccessor226.invoke(Unknown Source)

10:14:16,780 INFO [STDOUT] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

10:14:16,780 INFO [STDOUT] at
java.lang.reflect.Method.invoke(Method.java:324)

10:14:16,780 INFO [STDOUT] at
java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:809)

10:14:16,780 INFO [STDOUT] at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1296)

10:14:16,780 INFO [STDOUT] at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1247)

10:14:16,780 INFO [STDOUT] at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052)

10:14:16,780 INFO [STDOUT] at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278)

10:14:16,780 INFO [STDOUT] at
java.util.HashMap.writeObject(HashMap.java:978)

10:14:16,780 INFO [STDOUT] at
sun.reflect.GeneratedMethodAccessor225.invoke(Unknown Source)

10:14:16,780 INFO [STDOUT] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

10:14:16,780 INFO [STDOUT] at
java.lang.reflect.Method.invoke(Method.java:324)

10:14:16,780 INFO [STDOUT] at
java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:809)

10:14:16,780 INFO [STDOUT] at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1296)

10:14:16,780 INFO [STDOUT] at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1247)

10:14:16,780 INFO [STDOUT] at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052)

10:14:16,780 INFO [STDOUT] at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278)

10:14:16,780 INFO [STDOUT] at
org.jboss.web.tomcat.tc5.session.SessionBasedClusteredSession.writeExternal(SessionBasedClusteredSession.java:288)

10:14:16,780 INFO [STDOUT] at
org.jboss.web.tomcat.tc5.session.JBossCacheService.externalizeSession(JBossCacheService.java:771)

10:14:16,780 INFO [STDOUT] at
org.jboss.web.tomcat.tc5.session.JBossCacheService.putSession(JBossCacheService.java:229)

10:14:16,780 INFO [STDOUT] at
org.jboss.web.tomcat.tc5.session.SessionBasedClusteredSession.processSessionRepl(SessionBasedClusteredSession.java:165)

10:14:16,780 INFO [STDOUT] at
org.jboss.web.tomcat.tc5.session.JBossCacheManager.processSessionRepl(JBossCacheManager.java:606)

10:14:16,780 INFO [STDOUT] at
org.jboss.web.tomcat.tc5.session.JBossCacheManager.storeSession(JBossCacheManager.java:375)

10:14:16,780 INFO [STDOUT] at
org.jboss.web.tomcat.tc5.session.InstantSnapshotManager.snapshot(InstantSnapshotManager.java:38)

10:14:16,780 INFO [STDOUT] at
org.jboss.web.tomcat.tc5.session.ClusteredSessionValve.invoke(ClusteredSessionValve.java:91)

10:14:16,780 INFO [STDOUT] at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)

10:14:16,780 INFO [STDOUT] at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)

10:14:16,780 INFO [STDOUT] at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)

10:14:16,780 INFO [STDOUT] at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)

10:14:16,780 INFO [STDOUT] at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)

10:14:16,780 INFO [STDOUT] at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)

10:14:16,780 INFO [STDOUT] at org.apache.coyote.http11.Http11Protocol
$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)

10:14:16,780 INFO [STDOUT] at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)

10:14:16,780 INFO [STDOUT] at
org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)

10:14:16,780 INFO [STDOUT] at java.lang.Thread.run(Thread.java:534)
Thanks, 
Vijay

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