Moved ARP cache REST API under web package.

- Replaced deprecated JUnit method

Change-Id: I5abbf496c736fcb64858e10f465f3c2b6545ccdf
diff --git a/src/test/java/net/onrc/onos/apps/proxyarp/ProxyArpManagerTest.java b/src/test/java/net/onrc/onos/apps/proxyarp/ProxyArpManagerTest.java
index 73d37ea..13385f4 100644
--- a/src/test/java/net/onrc/onos/apps/proxyarp/ProxyArpManagerTest.java
+++ b/src/test/java/net/onrc/onos/apps/proxyarp/ProxyArpManagerTest.java
@@ -2,6 +2,7 @@
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
 
 import java.net.InetAddress;
 import java.net.UnknownHostException;
@@ -11,12 +12,12 @@
 import java.util.List;
 import java.util.Map;
 
-import junit.framework.Assert;
 import net.floodlightcontroller.core.IFloodlightProviderService;
 import net.floodlightcontroller.core.module.FloodlightModuleContext;
 import net.floodlightcontroller.restserver.IRestApiService;
 import net.floodlightcontroller.util.MACAddress;
 import net.onrc.onos.api.packet.IPacketService;
+import net.onrc.onos.apps.proxyarp.web.ArpWebRoutable;
 import net.onrc.onos.core.datagrid.IDatagridService;
 import net.onrc.onos.core.datagrid.IEventChannel;
 import net.onrc.onos.core.datagrid.IEventChannelListener;
@@ -185,13 +186,15 @@
 
         //Made tested objects
         arpCache = new ArpCache();
-        arpCacheComparisonList = new ArrayList<String>();
+        arpCache.setArpEntryTimeoutConfig(Long.parseLong(defaultStrCleanupMsec));
         arpCache.update(cachedIp1, cachedMac1);
+        arpCache.update(cachedIp2, cachedMac2);
+
+        arpCacheComparisonList = new ArrayList<String>();
         arpCacheComparisonList.add(cachedStrIp1
                 + " => "
                 + cachedStrMac1
                 + " : VALID");
-        arpCache.update(cachedIp2, cachedMac2);
         arpCacheComparisonList.add(cachedStrIp2
                 + " => "
                 + cachedStrMac2
@@ -247,7 +250,7 @@
         try {
             PowerMock.expectNew(ArpCache.class).andReturn(arpCache);
         } catch (Exception e) {
-            Assert.fail("Exception:" + e.getMessage());
+            fail("Exception:" + e.getMessage());
         }
         PowerMock.replayAll();
         EasyMock.expect(configInfoService.getVlan()).andReturn(vlanId);
@@ -269,6 +272,7 @@
 
     @After
     public void tearDown() throws Exception {
+        arpCache = null;
     }
 
     @Test