final FieldGroup fg = (new IFieldGroupProvider() {
public FieldGroup getFieldGroup() {
final FieldGroup fgroup = (new AccountFieldsProvider()).getFieldGroup();
fgroup.addField("paymentInfo", paymentInfoPanel.getFieldGroup());
fgroup.addField("addresses", addressesPanel.getFieldGroup());
return fgroup;
}
}).getFieldGroup();
paymentInfoPanel.getFieldGroup().setWidget(dpPaymentInfo);