Added restrictions for proxy ARP
diff --git a/core/api/src/test/java/org/onlab/onos/net/host/HostServiceAdapter.java b/core/api/src/test/java/org/onlab/onos/net/host/HostServiceAdapter.java
index f03621c..2394302 100644
--- a/core/api/src/test/java/org/onlab/onos/net/host/HostServiceAdapter.java
+++ b/core/api/src/test/java/org/onlab/onos/net/host/HostServiceAdapter.java
@@ -75,4 +75,14 @@
     public void removeListener(HostListener listener) {
     }
 
+    @Override
+    public Set<PortAddresses> getAddressBindings() {
+        return null;
+    }
+
+    @Override
+    public PortAddresses getAddressBindingsForPort(ConnectPoint connectPoint) {
+        return null;
+    }
+
 }