LiDO supports it.  Any instance stored in the field whose type is Object
must be either a PC, a PI, or custom-mapped.

--matthew

>-----Original Message-----
>From: erik@jpox.org [mailto:erik@jpox.org] 
>Sent: Friday, April 01, 2005 11:09 AM
>To: jdo-dev@db.apache.org
>Cc: jdo-experts-ext@Sun.COM
>Subject: RE: updates to tck11 project
>
>
>I wonder if we require developers willing to store java.lang.Object
>implement Serializable interface. JPOX requires it, what about others?
>
>Currently, the TCK does not implement Serializable.
>
>
>Erik Bengtson 
>
>-----Original Message-----
>From: Michelle Caisse [mailto:Michelle.Caisse@Sun.COM] 
>Sent: Friday, April 01, 2005 7:21 AM
>To: jdo-dev@db.apache.org
>Subject: updates to tck11 project
>
>Hi,
>
>I have made the following commits to tck11:
>
>-  Fixed problem with Oid classes reported by Erik
>-  Fixed a couple of minor problems with maven.xml in the 
>runtck.single 
>and enhance.*identity goals.
>
>-- Michelle
>
>