import static org.junit.Assert.assertEquals;
-import com.google.common.base.Optional;
+import java.util.Optional;
import org.apache.commons.lang.SerializationUtils;
import org.junit.Assert;
import org.junit.Test;
import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
+import org.opendaylight.mdsal.dom.spi.store.DOMStoreReadWriteTransaction;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;