The domain type Foo_$$_javassist_45 cannot be sent to the client

Hi Guys,

I am having an issue using GWT 2.2 RequestFactory and Hibernate 3.6.
My domain model is looks like this:

class Bar {
Long id;
String title;
Foo foo;
}

class Foo {
Long.id;
String title;
}

So, I am trying to populate a CellTable using request factory with
Bar.id, Bar.title, Bar.foo.id. The domain model is constructed from
the database using JPA/Hibernate. The problem I am getting is:

com.google.gwt.requestfactory.server.UnexpectedException: The domain
type Foo_$$_javassist_45 cannot be sent to the client
at
com.google.gwt.requestfactory.server.ServiceLayerDecorator.die(ServiceLayerDecorator.java:
185)
at
com.google.gwt.requestfactory.server.ResolverServiceLayer.resolveClientType(ResolverServiceLayer.java:
91)
at
com.google.gwt.requestfactory.server.ServiceLayerDecorator.resolveClientType(ServiceLayerDecorator.java:
122)
at
com.google.gwt.requestfactory.server.ServiceLayerDecorator.resolveClientType(ServiceLayerDecorator.java:
122)

It appears that Hibernate enhances Foo producing a class is called Foo_
$$_javassist_45. However, the RequestFactory cannot associate the
enhanced class with FooProxy.

Is there a way around it ?

Thanks
Stefan

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