diff --git a/core/api/src/test/java/org/onosproject/store/service/ConsistentMapAdapter.java b/core/api/src/test/java/org/onosproject/store/service/ConsistentMapAdapter.java
index e6df572..d0c1adf 100644
--- a/core/api/src/test/java/org/onosproject/store/service/ConsistentMapAdapter.java
+++ b/core/api/src/test/java/org/onosproject/store/service/ConsistentMapAdapter.java
@@ -141,4 +141,9 @@
     public void removeListener(MapEventListener<K, V> listener) {
 
     }
+
+    @Override
+    public Map<K, V> asJavaMap() {
+        return null;
+    }
 }