diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/flowclassifier/impl/FlowClassifierManager.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/flowclassifier/impl/FlowClassifierManager.java
index ee5873d..015163d 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/flowclassifier/impl/FlowClassifierManager.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/flowclassifier/impl/FlowClassifierManager.java
@@ -54,7 +54,7 @@
     protected StorageService storageService;
 
     @Activate
-    private void activate() {
+    protected void activate() {
         KryoNamespace.Builder serializer = KryoNamespace.newBuilder()
                 .register(KryoNamespaces.API)
                 .register(MultiValuedTimestamp.class)
@@ -67,7 +67,7 @@
     }
 
     @Deactivate
-    private void deactivate() {
+    protected void deactivate() {
         flowClassifierStore.destroy();
         log.info("Flow Classifier service deactivated");
     }