diff --git a/core/api/src/test/java/org/onosproject/net/flow/FlowRuleServiceAdapter.java b/core/api/src/test/java/org/onosproject/net/flow/FlowRuleServiceAdapter.java
index 21fd045..4f53b96 100644
--- a/core/api/src/test/java/org/onosproject/net/flow/FlowRuleServiceAdapter.java
+++ b/core/api/src/test/java/org/onosproject/net/flow/FlowRuleServiceAdapter.java
@@ -38,7 +38,11 @@
     }
 
     @Override
-    public void purgeFlowRules(DeviceId deviceId){
+    public void purgeFlowRules(DeviceId deviceId) {
+    }
+
+    @Override
+    public void purgeFlowRules(DeviceId deviceId, ApplicationId appId) {
     }
 
     @Override