Unsupported Attribute class

Hello, all!
When I try to retrieve DataCollection: 

LinkedList ll = portalUser.getDocsCollectionLocales();
DataCollection entries =
SessionManager.getSession().retrieve(News.BASE_DATA_OBJECT_TYPE);
entries.setRange(new Integer(0), quantity);
Filter filter = entries.addFilter(News.LOCALE+ " in
:localeToRetrieve");
filter.set("localeToRetrieve", ll);

such exception occurs:

2004-07-16 16:18:40,831 [0][9]] ERROR
dispatcher.BaseDispatcherServlet - error in
BaseDispatcherServlet
com.arsdigita.persistence.PersistenceException:
Unsupported Attribute class: class
com.arsdigita.globalization.Locale
        at
com.arsdigita.persistence.AbstractDataOperation.getDataType(AbstractDataOperation.java:115)
        at
com.arsdigita.persistence.AbstractDataOperation.getDataType(AbstractDataOperation.java:110)
        at
com.arsdigita.persistence.AbstractDataOperation.setParameter(AbstractDataOperation.java:60)
.................

How can I make class
com.arsdigita.globalization.Locale    "supported"?

Thanks.

=====
----------------------------------------------------------Alexander Koziy,[email protected].


		
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