bill.refundedBill ne null}" value="#{bill.refundedBill.comments}" >
                </h:outputLabel>
                <h:outputLabel  rendered="#{bill.cancelledBill ne null}" value="#{bill.cancelledBill.comments}" >
                </h:outputLabel>
            </p:column>
        </p:dataTable>
    </cc:implementation>
</html>