Session Serialized problem ?

catcat · **Posted:** Sat Jan 31, 2004 1:56 am

Can a disconnect session be serialized from EJB Server to Client?

I got the session complain the SessionFactory when it is deserialized at client side.

roofimon · **Posted:** Sat Jan 31, 2004 2:22 am

Could you please show your ERROR message? Because I'm using SessionBean with Hebernate same as you, but I haven't got any problems.
Cool

catcat · **Posted:** Sat Jan 31, 2004 3:07 am

It is cause by readResolve() that it cannot reference to the SessionFactory. The SessionFactory can be lookup inside Session Bean and no problem. For my intention, I am not going to reconnect the session in client side, but I want to keep the session-scope cached object and pass back to the server side and reconnect again at later use.

The remote interface is

Code:

public net.sf.hibernate.Session getSession(  )
      throws java.rmi.RemoteException;

Here is the exception during client deserialized the object

Code:

Caused by: java.io.InvalidObjectException: Could not find a SessionFactory named: java:/hibernate/HibernateFactory
   at net.sf.hibernate.impl.SessionFactoryImpl.readResolve(SessionFactoryImpl.java:399)
   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.invokeReadResolve(ObjectStreamClass.java:925)
   at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1655)
   at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)
   at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1845)
   at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:452)
   at net.sf.hibernate.impl.SessionImpl.readObject(SessionImpl.java:446)
   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:838)
   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 java.rmi.MarshalledObject.get(MarshalledObject.java:135)
   at org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.java:136)
   at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:87)
   at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
   at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:45)
   at org.jboss.proxy.ejb.StatefulSessionInterceptor.invoke(StatefulSessionInterceptor.java:104)END

   at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)

emmanuel · **Posted:** Sat Jan 31, 2004 7:56 am

catcat wrote:

Can a disconnect session be serialized from EJB Server to Client?

I don't think it was intended to. sessions must stay local.

gavin · **Posted:** Sat Jan 31, 2004 10:22 pm

Well, Hibernate session serialization is useful if it is to be kept in a clustered HttpSession.