diff --git a/src/main/java/org/onosproject/segmentrouting/grouphandler/DefaultGroupHandler.java b/src/main/java/org/onosproject/segmentrouting/grouphandler/DefaultGroupHandler.java
index cb58f84..457be6d 100644
--- a/src/main/java/org/onosproject/segmentrouting/grouphandler/DefaultGroupHandler.java
+++ b/src/main/java/org/onosproject/segmentrouting/grouphandler/DefaultGroupHandler.java
@@ -53,6 +53,10 @@
 import org.onosproject.segmentrouting.SegmentRoutingManager;
 import org.onosproject.segmentrouting.config.DeviceConfigNotFoundException;
 import org.onosproject.segmentrouting.config.DeviceProperties;
+import org.onosproject.segmentrouting.storekey.NeighborSetNextObjectiveStoreKey;
+import org.onosproject.segmentrouting.storekey.PortNextObjectiveStoreKey;
+import org.onosproject.segmentrouting.storekey.SubnetNextObjectiveStoreKey;
+import org.onosproject.segmentrouting.storekey.XConnectNextObjectiveStoreKey;
 import org.onosproject.store.service.EventuallyConsistentMap;
 import org.slf4j.Logger;