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Hibernate version: 3.0.2

Mapping documents:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd" >

<hibernate-mapping package="com.myadbox.bo">
<class name="User" table="df_user" dynamic-update="true">
<cache usage="read-write"/>
<id
column="user_id"
name="Id"
type="java.lang.Long"
>
<generator class="identity" />
</id>

<property
column="username"
length="25"
name="Username"
not-null="false"
type="string"
/>
</class>
</hibernate-mapping>
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd" >

<hibernate-mapping package="com.myadbox.bo">
<joined-subclass name="MessageBoxOwner"
table="message_box_owner"
extends="com.myadbox.bo.User">
<key column="message_box_owner_id" />

<many-to-one
name="MessageBox"
class="MessageBox"
column="message_box_id"
not-null="true"
/>
</joined-subclass>
</hibernate-mapping>


I recive a ClassCastException when trying to perform the following operation on an object which I *know* to be a MessageBoxOwner. In fact, if I examine the class with Eclipse at runtime, I can see that it has a MessageBox associated with it. Could somebody tell me how I could perform the following operation?

MessageBox mb = ((MessageBoxOwner) user).getMessageBox();

Without receiving the following error?

java.lang.ClassCastException: com.myadbox.bo.User$$EnhancerByCGLIB$$46f9c9d

Thank you very much for your time.

I am having this same problem, too. This type of thing was working in Hibernate 2, so what gives?

Thanks.

Hmm, looks like there's plenty of information on this already in the forum. Search on ClassCastException and EnhancerByCGLIB and you'll get the scoop (which isn't going to make you happy, most likely).

Good luck.

--
Phil

Thank you very much, Phil. That was the information I needed.

Joe