1 files changed, 3 insertions, 2 deletions
diff --git a/infra/data-impl/src/main/java/io/fd/honeycomb/data/impl/PersistingDataTreeAdapter.java b/infra/data-impl/src/main/java/io/fd/honeycomb/data/impl/PersistingDataTreeAdapter.java
index 3c356c256..d779e6258 100644
--- a/infra/data-impl/src/main/java/io/fd/honeycomb/data/impl/PersistingDataTreeAdapter.java
+++ b/infra/data-impl/src/main/java/io/fd/honeycomb/data/impl/PersistingDataTreeAdapter.java
@@ -21,19 +21,20 @@ import static com.google.common.base.Preconditions.checkNotNull;
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.MoreObjects;
-import com.google.common.base.Optional;
 import io.fd.honeycomb.translate.util.JsonUtils;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.StandardOpenOption;
+import java.util.Optional;
 import javax.annotation.Nonnull;
 import org.opendaylight.controller.sal.core.api.model.SchemaService;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidateTip;
 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot;
 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
@@ -163,7 +164,7 @@ public class PersistingDataTreeAdapter implements DataTree {
     }
 
     @Override
-    public DataTreeCandidate prepare(
+    public DataTreeCandidateTip prepare(
         final DataTreeModification dataTreeModification) {
         return delegateDependency.prepare(dataTreeModification);
     }