diff --git a/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/ChannelAdapter.java b/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/ChannelAdapter.java
index d4d9191..60f0c2e 100644
--- a/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/ChannelAdapter.java
+++ b/protocols/openflow/api/src/test/java/org/onosproject/openflow/controller/driver/ChannelAdapter.java
@@ -143,6 +143,16 @@
     }
 
     @Override
+    public boolean getUserDefinedWritability(int i) {
+        return false;
+    }
+
+    @Override
+    public void setUserDefinedWritability(int i, boolean b) {
+
+    }
+
+    @Override
     public Object getAttachment() {
         return null;
     }