Add missing @Override annotation

Change-Id: Id6bf4bd0ef9a9094ea5523b2df8ecdaee365ee50
diff --git a/core/net/src/main/java/org/onosproject/net/intent/impl/Installed.java b/core/net/src/main/java/org/onosproject/net/intent/impl/Installed.java
index a3a7e1d..fb94fe6 100644
--- a/core/net/src/main/java/org/onosproject/net/intent/impl/Installed.java
+++ b/core/net/src/main/java/org/onosproject/net/intent/impl/Installed.java
@@ -29,6 +29,7 @@
         this.intentData.setState(INSTALLING);
     }
 
+    @Override
     public IntentData data() {
         return intentData;
     }