Really Strange ClassNotFoundException on WL 9.2

[darthmaul]

When I deploy my Seam-JPA application onto WebLogic 9.2, I get the following exception:

     [exec] <Mar 10, 2008 1:12:45 PM EDT> <Error> <J2EE Deployment SPI> <BEA-260
125> <Errors detected attempting to communicate with admin server: java.rmi.Unma
rshalException: failed to unmarshal class java.lang.Object; nested exception is:

     [exec]     java.lang.ClassNotFoundException: Failed to load class org.hiber
nate.HibernateException
     [exec] weblogic.management.jmx.RemoteRuntimeException: java.rmi.UnmarshalEx
ception: failed to unmarshal class java.lang.Object; nested exception is:
     [exec]     java.lang.ClassNotFoundException: Failed to load class org.hiber
nate.HibernateException
     [exec]     at weblogic.management.jmx.MBeanServerInvocationHandler.checkThr
owsIOException(MBeanServerInvocationHandler.java:568)
     [exec]     at weblogic.management.jmx.MBeanServerInvocationHandler.invoke(M
BeanServerInvocationHandler.java:384)
     [exec]     at $Proxy16.getTargets()[Lweblogic.management.deploy.TargetStatu
s;(Unknown Source)
     [exec]     at weblogic.deploy.api.spi.status.ProgressObjectImpl.updateTmids
(ProgressObjectImpl.java:166)
     [exec]     at weblogic.deploy.api.spi.status.ProgressObjectImpl.getResultTa
rgetModuleIDs(ProgressObjectImpl.java:158)
     [exec]     at weblogic.deploy.api.spi.status.ProgressObjectImpl.reportEvent
(ProgressObjectImpl.java:334)
     [exec]     at weblogic.deploy.api.spi.deploy.internal.ServerConnectionImpl$
TaskPoller.poll(ServerConnectionImpl.java:1067)
     [exec]     at weblogic.deploy.api.spi.deploy.internal.ServerConnectionImpl$
TaskPoller.run(ServerConnectionImpl.java:1032)
     [exec] java.rmi.UnmarshalException: failed to unmarshal class java.lang.Obj
ect; nested exception is:
     [exec]     java.lang.ClassNotFoundException: Failed to load class org.hiber
nate.HibernateException
     [exec]     at weblogic.rjvm.ResponseImpl.unmarshalReturn(ResponseImpl.java:
205)
     [exec]     at weblogic.rmi.internal.BasicRemoteRef.invoke(BasicRemoteRef.ja
va:224)
     [exec]     at javax.management.remote.rmi.RMIConnectionImpl_921_WLStub.getA
ttribute(Ljavax.management.ObjectName;Ljava.lang.String;Ljavax.security.auth.Sub
ject;)Ljava.lang.Object;(Unknown Source)
     [exec]     at weblogic.management.remote.common.RMIConnectionWrapper$11.run
(ClientProviderBase.java:498)
     [exec]     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(Auth
enticatedSubject.java:363)
     [exec]     at weblogic.security.service.SecurityManager.runAs(SecurityManag
er.java:147)
     [exec]     at weblogic.security.Security.runAs(Security.java:61)
     [exec]     at weblogic.management.remote.common.RMIConnectionWrapper.getAtt
ribute(ClientProviderBase.java:496)
     [exec]     at javax.management.remote.rmi.RMIConnector$RemoteMBeanServerCon
nection.getAttribute(RMIConnector.java:854)
     [exec]     at javax.management.MBeanServerInvocationHandler.invoke(MBeanSer
verInvocationHandler.java:175)
     [exec]     at weblogic.management.jmx.MBeanServerInvocationHandler.doInvoke
(MBeanServerInvocationHandler.java:503)
     [exec]     at weblogic.management.jmx.MBeanServerInvocationHandler.invoke(M
BeanServerInvocationHandler.java:380)
     [exec]     at $Proxy16.getTargets()[Lweblogic.management.deploy.TargetStatu
s;(Unknown Source)
     [exec]     at weblogic.deploy.api.spi.status.ProgressObjectImpl.updateTmids
(ProgressObjectImpl.java:166)
     [exec]     at weblogic.deploy.api.spi.status.ProgressObjectImpl.getResultTa
rgetModuleIDs(ProgressObjectImpl.java:158)
     [exec]     at weblogic.deploy.api.spi.status.ProgressObjectImpl.reportEvent
(ProgressObjectImpl.java:334)
     [exec]     at weblogic.deploy.api.spi.deploy.internal.ServerConnectionImpl$
TaskPoller.poll(ServerConnectionImpl.java:1067)
     [exec]     at weblogic.deploy.api.spi.deploy.internal.ServerConnectionImpl$
TaskPoller.run(ServerConnectionImpl.java:1032)
     [exec] java.lang.ClassNotFoundException: Failed to load class org.hibernate
.HibernateException
     [exec]     at weblogic.rmi.utils.WLRMIClassLoaderDelegate.loadClass(WLRMICl
assLoaderDelegate.java:203)
     [exec]     at weblogic.rmi.utils.WLRMIClassLoaderDelegate.loadClass(WLRMICl
assLoaderDelegate.java:128)
     [exec]     at weblogic.rmi.utils.Utilities.loadClass(Utilities.java:308)
     [exec]     at weblogic.rjvm.MsgAbbrevInputStream.resolveClass(MsgAbbrevInpu
tStream.java:400)
     [exec]     at weblogic.utils.io.ChunkedObjectInputStream$NestedObjectInputS
tream.resolveClass(ChunkedObjectInputStream.java:255)
     [exec]     at java.io.ObjectInputStream.readNonProxyDesc(Z)Ljava.io.ObjectS
treamClass;(Unknown Source)
     [exec]     at java.io.ObjectInputStream.readClassDesc(Z)Ljava.io.ObjectStre
amClass;(Unknown Source)
     [exec]     at java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava.lang.Obj
ect;(Unknown Source)
     [exec]     at java.io.ObjectInputStream.readObject0(Z)Ljava.lang.Object;(Un
known Source)
     [exec]     at java.io.ObjectInputStream.defaultReadFields(Ljava.lang.Object
;Ljava.io.ObjectStreamClass;)V(Unknown Source)
     [exec]     at java.io.ObjectInputStream.readSerialData(Ljava.lang.Object;Lj
ava.io.ObjectStreamClass;)V(Unknown Source)
     [exec]     at java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava.lang.Obj
ect;(Unknown Source)
     [exec]     at java.io.ObjectInputStream.readObject0(Z)Ljava.lang.Object;(Un
known Source)
     [exec]     at java.io.ObjectInputStream.readObject()Ljava.lang.Object;(Unkn
own Source)
     [exec]     at java.util.ArrayList.readObject(ArrayList.java:591)
     [exec]     at java.lang.LangAccessImpl.readObject(Ljava.lang.Class;Ljava.la
ng.Object;Ljava.io.ObjectInputStream;)V(Unknown Source)
     [exec]     at java.io.ObjectStreamClass.invokeReadObject(Ljava.lang.Object;
Ljava.io.ObjectInputStream;)V(Unknown Source)
     [exec]     at java.io.ObjectInputStream.readSerialData(Ljava.lang.Object;Lj
ava.io.ObjectStreamClass;)V(Unknown Source)
     [exec]     at java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava.lang.Obj
ect;(Unknown Source)
     [exec]     at java.io.ObjectInputStream.readObject0(Z)Ljava.lang.Object;(Un
known Source)
     [exec]     at java.io.ObjectInputStream.defaultReadFields(Ljava.lang.Object
;Ljava.io.ObjectStreamClass;)V(Unknown Source)
     [exec]     at java.io.ObjectInputStream.readSerialData(Ljava.lang.Object;Lj
ava.io.ObjectStreamClass;)V(Unknown Source)
     [exec]     at java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava.lang.Obj
ect;(Unknown Source)
     [exec]     at java.io.ObjectInputStream.readObject0(Z)Ljava.lang.Object;(Un
known Source)
     [exec]     at java.io.ObjectInputStream.readArray(Z)Ljava.lang.Object;(Unkn
own Source)
     [exec]     at java.io.ObjectInputStream.readObject0(Z)Ljava.lang.Object;(Un
known Source)
     [exec]     at java.io.ObjectInputStream.readObject()Ljava.lang.Object;(Unkn
own Source)
     [exec]     at weblogic.utils.io.ChunkedObjectInputStream.readObject(Chunked
ObjectInputStream.java:195)
     [exec]     at weblogic.rjvm.MsgAbbrevInputStream.readObject(MsgAbbrevInputS
tream.java:565)
     [exec]     at weblogic.utils.io.ChunkedObjectInputStream.readObject(Chunked
ObjectInputStream.java:191)
     [exec]     at weblogic.rmi.internal.ObjectIO.readObject(ObjectIO.java:62)
     [exec]     at weblogic.rjvm.ResponseImpl.unmarshalReturn(ResponseImpl.java:
201)

Now I assure you hibernate.jar with its org.hibernate.HibernateException is included in my WAR file.

The really interesting thing is this: this inability to deploy only occurs when I set my join relationships to be EAGER rather than LAZY. 

Weird, huh?

Any insight into why this might be is appreciated.

Thanks.

[jbalunas.jbalunas.jboss.org]

Just for info, what version of seam are using?

Also are you using the JPA example for 9.2?  Including using Pointbase?

Do you see any other JDBC/DB errors on the server?  Check the server and pointbase logs.  I'm not a hibernate expert- but I would guess you are throwing an exception when EAGER is used and hibernate can't throw it back to you.  i.e. this might be a side effect of the real issue.

-Jay

[darthmaul]

I am using Seam 2.0 GA.

I had the same idea, and it turns out you were right. 

Here is the real cause:

org.hibernate.HibernateException: cannot simultaneously fetch multiple bags
     at org.hibernate.loader.BasicLoader.postInstantiate(BasicLoader.java:66)
     at org.hibernate.loader.entity.EntityLoader.<init>(EntityLoader.java:75)
     at org.hibernate.loader.entity.EntityLoader.<init>(EntityLoader.java:43)
     at org.hibernate.loader.entity.EntityLoader.<init>(EntityLoader.java:33)
     at org.hibernate.loader.entity.BatchingEntityLoader.createBatchingEntityLoader(BatchingEntityLoader.java:103)
     at org.hibernate.persister.entity.AbstractEntityPersister.createEntityLoader(AbstractEntityPersister.java:1748)
     at org.hibernate.persister.entity.AbstractEntityPersister.createEntityLoader(AbstractEntityPersister.java:1752)
     at org.hibernate.persister.entity.AbstractEntityPersister.createLoaders(AbstractEntityPersister.java:2984)
     at org.hibernate.persister.entity.AbstractEntityPersister.postInstantiate(AbstractEntityPersister.java:2977)
     at org.hibernate.persister.entity.SingleTableEntityPersister.postInstantiate(SingleTableEntityPersister.java:690)
     at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:290)
     at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1294)
     at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:915)
     at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:730)
     at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:121)
     at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83)
     at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60)
     at org.jboss.seam.persistence.EntityManagerFactory.createEntityManagerFactory(EntityManagerFactory.java:81)
     at org.jboss.seam.persistence.EntityManagerFactory.startup(EntityManagerFactory.java:50)
     at jrockit.reflect.VirtualNativeMethodInvoker.invoke(Ljava.lang.Object;[Ljava.lang.Object;)Ljava.lang.Object;(Unknown Source)
     at java.lang.reflect.Method.invoke(Ljava.lang.Object;[Ljava.lang.Object;I)Ljava.lang.Object;(Unknown Source)
     at org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
     at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125)
     at org.jboss.seam.Component.callComponentMethod(Component.java:2082)
     at org.jboss.seam.Component.callCreateMethod(Component.java:1997)
     at org.jboss.seam.Component.newInstance(Component.java:1968)
     at org.jboss.seam.contexts.Contexts.startup(Contexts.java:304)
     at org.jboss.seam.contexts.Contexts.startup(Contexts.java:278)
     at org.jboss.seam.contexts.ServletLifecycle.endInitialization(ServletLifecycle.java:95)

Since there are like 97 log files you have to peruse with WL deployment to find what you need, I missed this the first time around. 

I have two OneToMany relationships mapped with a List<T> data structure, and when I set things to EAGER, I get that exception.

I have seen some resolutions involving Hibernate annotations, but I am using JPA.  Granted I am using JPA powered by Hibernate, but I would like to resolve this issue in a JPA manner rather than a Hibernate manner if possible.

I would prefer to use a List, but would SortedSet work?

Any insight is appreciated.

Thanks.

[jbalunas.jbalunas.jboss.org]

We I'm glad that you found the base cause of the issue, but one of the hibernate guys will have to answer your other questions.

I'm not quite sure :)