Remove deprecated deserialize() mthods from packet classes

Change-Id: I4e52ab368390d30f5f5f24d443a5021916d0c6a3
diff --git a/core/net/src/test/java/org/onosproject/net/neighbour/impl/DefaultNeighbourMessageActionsTest.java b/core/net/src/test/java/org/onosproject/net/neighbour/impl/DefaultNeighbourMessageActionsTest.java
index 52b5227..40e49af 100644
--- a/core/net/src/test/java/org/onosproject/net/neighbour/impl/DefaultNeighbourMessageActionsTest.java
+++ b/core/net/src/test/java/org/onosproject/net/neighbour/impl/DefaultNeighbourMessageActionsTest.java
@@ -113,7 +113,7 @@
     public void forwardToInterface() {
         Ethernet request = NeighbourTestUtils.createArpRequest(IP1);
 
-        Ethernet forwardedRequest = (Ethernet) request.clone();
+        Ethernet forwardedRequest = request.duplicate();
         forwardedRequest.setSourceMACAddress(INTF2.mac());
         forwardedRequest.setVlanID(INTF2.vlan().toShort());