Hibernate version:
2.17c
Mapping documents:

Code between sessionFactory.openSession() and session.close():

Full stack trace of any exception that occurs:
Caused by: java.lang.ClassNotFoundException: net.sf.hibernate.collection.Set (no security manager: RMI class loader disabled)
at sun.rmi.server.LoaderHandler.loadClass(Unknown Source)
at sun.rmi.server.LoaderHandler.loadClass(Unknown Source)
at java.rmi.server.RMIClassLoader$2.loadClass(Unknown Source)
at java.rmi.server.RMIClassLoader.loadClass(Unknown Source)
at sun.rmi.server.MarshalInputStream.resolveClass(Unknown Source)
at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source)
at java.io.ObjectInputStream.readClassDesc(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
at java.io.ObjectInputStream.readSerialData(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at java.util.ArrayList.readObject(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at java.io.ObjectStreamClass.invokeReadObject(Unknown Source)
at java.io.ObjectInputStream.readSerialData(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
at java.io.ObjectInputStream.readSerialData(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at java.rmi.MarshalledObject.get(Unknown Source)
at org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.java:119)
at org.jboss.invocation.InvokerInterceptor.invokeInvoker(InvokerInterceptor.java:163)
at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:103)
at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:55)
at org.jboss.proxy.ejb.StatelessSessionInterceptor.invoke(StatelessSessionInterceptor.java:97)
at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:91)
... 35 more

When connecting to a JBoss Server running on Linux platform and the client running on Windows - I get the above exception stating that RMI security Manager issue (even though I tried security manager initialization command line and through programatically).

The code work perfectly on Windows platform (JBoss server and RMI client). Any suggestions?

make sure hibernate2.jar is in the classpath

RMI Client doesn't need to know about Hibernate

RMI Client communicates with a Session Bean - GetUsers

GetUsers gets back with list of Users (POJO)

Users have list of Roles (lazy loaded with a java.util.Set)

Don't know why RMI call with JBoss complains about Hibernate's Set class.

This works fine with Weblogic and JBoss on Windows. Its only an issue with JBoss running on Linux and RMI Client running on Windows.

I'm not sure what all of that means but the system w/ the ClassNotFoundException needs hibernate2.jar in the classpath .

It worked ! Copying all the hibernate jars as part of RMI client does the magic.

However, why do we need to make the hibernate libraries part of the RMI client? Is there a way to avoid shipping hibernate libraries since my EJB methods refer only to java.util.Set ?

thanks.

if the hibernate collections is not on the client side we cannot track changes effectively (among other things)