diff --git a/core/api/src/test/java/org/onosproject/store/service/StorageServiceAdapter.java b/core/api/src/test/java/org/onosproject/store/service/StorageServiceAdapter.java
index c44d3c7..b68958f 100644
--- a/core/api/src/test/java/org/onosproject/store/service/StorageServiceAdapter.java
+++ b/core/api/src/test/java/org/onosproject/store/service/StorageServiceAdapter.java
@@ -90,8 +90,14 @@
     public <V> AsyncDocumentTree<V> getDocumentTree(String name, Serializer serializer) {
         return null;
     }
+
     @Override
     public <K, V> ConsistentMultimapBuilder<K, V> consistentMultimapBuilder() {
         return null;
     }
+
+    @Override
+    public <K> AtomicCounterMapBuilder<K> atomicCounterMapBuilder() {
+        return null;
+    }
 }