[ONOS-7905] Add default implementation for kubernetes data model

Change-Id: I08e9266dec2050e8299e4189745608a6e03fd06e
diff --git a/apps/k8s-networking/api/src/main/java/org/onosproject/k8snetworking/api/K8sIpam.java b/apps/k8s-networking/api/src/main/java/org/onosproject/k8snetworking/api/K8sIpam.java
index 57f2130..9969f30 100644
--- a/apps/k8s-networking/api/src/main/java/org/onosproject/k8snetworking/api/K8sIpam.java
+++ b/apps/k8s-networking/api/src/main/java/org/onosproject/k8snetworking/api/K8sIpam.java
@@ -27,7 +27,7 @@
      *
      * @return IP address
      */
-    IpAddress ipaddress();
+    IpAddress ipAddress();
 
     /**
      * Returns the kubernetes network ID.