Distributed work queue primitive

Change-Id: Ia8e531e6611ec502399edec376ccc00522e47994
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 8c12b05..18ea539 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
@@ -58,4 +58,9 @@
     public LeaderElectorBuilder leaderElectorBuilder() {
         return null;
     }
+
+    @Override
+    public <E> WorkQueue<E> getWorkQueue(String name, Serializer serializer) {
+        return null;
+    }
 }