JSF Validations & Hibernate cglib

Question

Hi,
I'm having some trouble with using Hibernate with JSF.
When using hibernate, lazy loaded.
The problem is that i now have a CGLIB-enhanced version of one of my domain objects. The value of which is to be compared to a list of selectitems.
As it turns out, JSF tries casting my normal objects to a version of those EnhancedObjects, which gives me an IllegalArgumentException because of course the Parent class (ConfigProfile) cannot be cast to one of it's children (ConfigProfile$$EnhancerByCGLibxxx$$)
Has anyone ever come across this problem, and knows how to handle it ?
Thanks in advance !
Jeroen
My Exception :
12-jan-2007 11:18:14 com.sun.faces.lifecycle.ProcessValidationsPhase execute
WARNING: Cannot convert com.watchtalk.web.businessobject.ConnectProfile@966905 of type class com.watchtalk.web.businessobject.ConnectProfile to class com.watchtalk.web.businessobject.ConnectProfile$$EnhancerByCGLIB$$b8f981a2
java.lang.IllegalArgumentException: Cannot convert com.watchtalk.web.businessobject.ConnectProfile@966905 of type class com.watchtalk.web.businessobject.ConnectProfile to class com.watchtalk.web.businessobject.ConnectProfile$$EnhancerByCGLIB$$b8f981a2
     at com.sun.el.lang.ELSupport.coerceToType(ELSupport.java:367)
     at com.sun.el.ExpressionFactoryImpl.coerceToType(ExpressionFactoryImpl.java:52)
     at javax.faces.component.UISelectOne.matchValue(Unknown Source)
     at javax.faces.component.UISelectOne.validateValue(Unknown Source)
     at javax.faces.component.UIInput.validate(Unknown Source)
     at javax.faces.component.UIInput.executeValidate(Unknown Source)
     at javax.faces.component.UIInput.processValidators(Unknown Source)
     at javax.faces.component.UIForm.processValidators(Unknown Source)
     at javax.faces.component.UIComponentBase.processValidators(Unknown Source)
     at javax.faces.component.UIViewRoot.processValidators(Unknown Source)
     at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(Unknown Source)
     at com.sun.faces.lifecycle.LifecycleImpl.phase(Unknown Source)
     at com.sun.faces.lifecycle.LifecycleImpl.execute(Unknown Source)
     at javax.faces.webapp.FacesServlet.service(Unknown Source)

Answer 1

In my case the exception was from expr.setValue(el, bo), where the Object before was a CGLIB-Proxy and the new Class wasn't. The Solution was to set the value NULL, before set the new Object.
FacesContext context = FacesContext.getCurrentInstance();
ELContext el = context.getELContext();
ExpressionFactory ef = context.getApplication().getExpressionFactory();
ValueExpression expr = ef.createValueExpression(el, "${Businessobject}", Businessobject.class);
Service service = (Service) getBeanFromContext(service);
Businessobject bo = service.createBusinessobject();
expr.setValue(el, null);
expr.setValue(el, bo);
I hope this will be helpful for you.