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						 Hi,
 
 I'm trying to filter a collection, but I keep getting the following exception.  Can someone tell me what I'm doing wrong or point me to better docs on filter clauses?
 
 Thanks in advance!
 -Ben
 
 net.sf.hibernate.QueryException: The collection was unreferenced
 
 Here's my filter code:
 
             List payments = Borrwer.getPayments();
             String paymentsFilterStr =
                     "where this.vmthUsed is not null"
                     + " and this.vmthPayment is not null "
                     + " and this.monthlyPayment is not null";
             payments = (List)session.filter(payments, paymentsFilterStr); 
					
  
						
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