Fix some compilation warnings.

Change-Id: I7d9b28ac32ac84e3ed6ab2255e1db6245be14c77
diff --git a/src/main/java/net/onrc/onos/apps/forwarding/Forwarding.java b/src/main/java/net/onrc/onos/apps/forwarding/Forwarding.java
index a4126f6..b8b2a2c 100644
--- a/src/main/java/net/onrc/onos/apps/forwarding/Forwarding.java
+++ b/src/main/java/net/onrc/onos/apps/forwarding/Forwarding.java
@@ -320,7 +320,7 @@
                     net.onrc.onos.core.intent.Path path = pathIntent.getPath();
 
                     for (Iterator<LinkEvent> i = path.iterator(); i.hasNext();) {
-                        LinkEvent le = (LinkEvent) i.next();
+                        LinkEvent le = i.next();
                         if (le.getSrc().dpid.equals(sw.getDpid())) {
                             log.debug("src {} dst {}", le.getSrc(), le.getDst());
                             isflowEntryForThisSwitch = true;
@@ -500,6 +500,7 @@
                         default:
                             break;
                     }
+                    break;
                 default:
                     break;
             }
diff --git a/src/main/java/net/onrc/onos/apps/proxyarp/ArpCacheNotification.java b/src/main/java/net/onrc/onos/apps/proxyarp/ArpCacheNotification.java
index 3eef171..cae6a7d 100644
--- a/src/main/java/net/onrc/onos/apps/proxyarp/ArpCacheNotification.java
+++ b/src/main/java/net/onrc/onos/apps/proxyarp/ArpCacheNotification.java
@@ -22,8 +22,8 @@
      */
     public ArpCacheNotification(byte[] targetAddress,
                                 byte[] targetMacAddress) {
-        this.targetAddress = (byte[]) targetAddress.clone();
-        this.targetMacAddress = (byte[]) targetMacAddress.clone();
+        this.targetAddress = targetAddress.clone();
+        this.targetMacAddress = targetMacAddress.clone();
     }
 
     /**
@@ -32,7 +32,7 @@
      * @return the IP address
      */
     public byte[] getTargetAddress() {
-        return (byte[]) targetAddress.clone();
+        return targetAddress.clone();
     }
 
     /**
@@ -41,7 +41,7 @@
      * @return the MAC address
      */
     public byte[] getTargetMacAddress() {
-        return (byte[]) targetMacAddress.clone();
+        return targetMacAddress.clone();
     }
 
 }