import com.google.common.base.Preconditions;
import javax.annotation.Nonnull;
+import org.opendaylight.mdsal.eos.common.api.GenericEntity;
+import org.opendaylight.mdsal.eos.common.api.GenericEntityOwnershipChange;
+import org.opendaylight.mdsal.eos.common.api.GenericEntityOwnershipListener;
+import org.opendaylight.mdsal.eos.common.api.GenericEntityOwnershipListenerRegistration;
import org.opendaylight.yangtools.concepts.AbstractObjectRegistration;
import org.opendaylight.yangtools.concepts.Path;