merge from upstream/master
diff --git a/src/main/java/net/onrc/onos/ofcontroller/proxyarp/ArpMessage.java b/src/main/java/net/onrc/onos/ofcontroller/proxyarp/ArpMessage.java
index 6ce5ade..ee8f23d 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/proxyarp/ArpMessage.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/proxyarp/ArpMessage.java
@@ -2,11 +2,7 @@
 
 import java.io.Serializable;
 import java.net.InetAddress;
-import java.util.ArrayList;
-import java.util.List;
-
 import net.floodlightcontroller.util.MACAddress;
-import net.onrc.onos.ofcontroller.util.SwitchPort;
 
 public class ArpMessage implements Serializable {
 
@@ -25,9 +21,8 @@
 	private final long outSwitch; 
 	private final short outPort;
 	
-	
-	private final List<SwitchPort> switchPorts = new ArrayList<SwitchPort>();
-	
+
+
 	public enum Type {
 		REQUEST,
 		REPLY