This is a common issue. You need to define a @FetchGroup( )  for your class
that names that member then add the FetchGroup to your persistence manager.

@FetchGroup(  name="children", members={
@Persistent(name="childcollection")
})
public class ....

//-------------------------------
PersistenceManager pm;
FetchPlan fp = pm.getFetchPlan();
fp.addGroup("children");


On Wed, Dec 2, 2009 at 9:50 AM, Avis developer <[email protected]>wrote:

> I tried using ArrayList in a persistent way, but its not getting
> persistent.. It adds the value when i call the add method, but for
> retriving it still says null..
> Is this a bug or my programming fault ? Pls help
>
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