diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/MockFlowRuleService.java b/core/net/src/test/java/org/onosproject/net/intent/impl/MockFlowRuleService.java
index 66ea27e..27e523d 100644
--- a/core/net/src/test/java/org/onosproject/net/intent/impl/MockFlowRuleService.java
+++ b/core/net/src/test/java/org/onosproject/net/intent/impl/MockFlowRuleService.java
@@ -23,14 +23,13 @@
 import org.onosproject.net.flow.DefaultFlowEntry;
 import org.onosproject.net.flow.FlowEntry;
 import org.onosproject.net.flow.FlowRule;
-import org.onosproject.net.flow.FlowRuleListener;
 import org.onosproject.net.flow.FlowRuleOperations;
-import org.onosproject.net.flow.FlowRuleService;
+import org.onosproject.net.flow.FlowRuleServiceAdapter;
 
 import com.google.common.collect.Sets;
 
 
-public class MockFlowRuleService implements FlowRuleService {
+public class MockFlowRuleService extends FlowRuleServiceAdapter {
 
     final Set<FlowRule> flows = Sets.newHashSet();
     boolean success;
@@ -62,16 +61,6 @@
     }
 
     @Override
-    public void addListener(FlowRuleListener listener) {
-        //TODO not implemented
-    }
-
-    @Override
-    public void removeListener(FlowRuleListener listener) {
-        //TODO not implemented
-    }
-
-    @Override
     public int getFlowRuleCount() {
         return flows.size();
     }
@@ -99,11 +88,6 @@
     }
 
     @Override
-    public void removeFlowRulesById(ApplicationId appId) {
-        //TODO not implemented
-    }
-
-    @Override
     public Iterable<FlowRule> getFlowRulesById(ApplicationId id) {
         return flows.stream()
                     .filter(flow -> flow.appId() == id.id())