-import org.opendaylight.controller.sal.binding.api.*;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.*;
+import org.opendaylight.controller.sal.binding.api.BindingAwareConsumer;
+import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
+import org.opendaylight.controller.sal.binding.api.NotificationService;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowAdded;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowAddedBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowRemoved;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowUpdated;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowListener;