Make Logger instance final as SL4J suggests
diff --git a/src/test/java/net/floodlightcontroller/core/module/FloodlightTestModuleLoader.java b/src/test/java/net/floodlightcontroller/core/module/FloodlightTestModuleLoader.java
index 2ba838e..be43a8b 100644
--- a/src/test/java/net/floodlightcontroller/core/module/FloodlightTestModuleLoader.java
+++ b/src/test/java/net/floodlightcontroller/core/module/FloodlightTestModuleLoader.java
@@ -19,7 +19,7 @@
 import net.floodlightcontroller.topology.TopologyManager;
 
 public class FloodlightTestModuleLoader extends FloodlightModuleLoader {
-	protected static Logger log = LoggerFactory.getLogger(FloodlightTestModuleLoader.class);
+	protected final static Logger log = LoggerFactory.getLogger(FloodlightTestModuleLoader.class);
 	
 	// List of default modules to use unless specified otherwise
 	public static final Class<? extends IFloodlightModule> DEFAULT_STORAGE_SOURCE =
diff --git a/src/test/java/net/floodlightcontroller/core/test/MockFloodlightProvider.java b/src/test/java/net/floodlightcontroller/core/test/MockFloodlightProvider.java
index b37451a..2a158e5 100644
--- a/src/test/java/net/floodlightcontroller/core/test/MockFloodlightProvider.java
+++ b/src/test/java/net/floodlightcontroller/core/test/MockFloodlightProvider.java
@@ -58,7 +58,7 @@
  * @author David Erickson (daviderickson@cs.stanford.edu)
  */
 public class MockFloodlightProvider implements IFloodlightModule, IFloodlightProviderService {
-    protected static Logger log = LoggerFactory.getLogger(MockFloodlightProvider.class);
+    protected final static Logger log = LoggerFactory.getLogger(MockFloodlightProvider.class);
     protected ConcurrentMap<OFType, ListenerDispatcher<OFType,IOFMessageListener>> listeners;
     protected List<IOFSwitchListener> switchListeners;
     protected List<IHAListener> haListeners;
diff --git a/src/test/java/net/floodlightcontroller/devicemanager/internal/DeviceManagerImplTest.java b/src/test/java/net/floodlightcontroller/devicemanager/internal/DeviceManagerImplTest.java
index e266d4a..cc77f14 100644
--- a/src/test/java/net/floodlightcontroller/devicemanager/internal/DeviceManagerImplTest.java
+++ b/src/test/java/net/floodlightcontroller/devicemanager/internal/DeviceManagerImplTest.java
@@ -76,7 +76,7 @@
 
 public class DeviceManagerImplTest extends FloodlightTestCase {
 
-    protected static Logger logger =
+    protected final static Logger logger =
             LoggerFactory.getLogger(DeviceManagerImplTest.class);
 
     protected OFPacketIn packetIn_1, packetIn_2, packetIn_3;
diff --git a/src/test/java/net/floodlightcontroller/topology/TopologyInstanceTest.java b/src/test/java/net/floodlightcontroller/topology/TopologyInstanceTest.java
index 9232bb5..8653625 100644
--- a/src/test/java/net/floodlightcontroller/topology/TopologyInstanceTest.java
+++ b/src/test/java/net/floodlightcontroller/topology/TopologyInstanceTest.java
@@ -23,7 +23,7 @@
 import org.slf4j.LoggerFactory;
 
 public class TopologyInstanceTest {
-    protected static Logger log = LoggerFactory.getLogger(TopologyInstanceTest.class);
+    protected final static Logger log = LoggerFactory.getLogger(TopologyInstanceTest.class);
     protected TopologyManager topologyManager;
     protected FloodlightModuleContext fmc;
     protected MockFloodlightProvider mockFloodlightProvider;
diff --git a/src/test/java/net/floodlightcontroller/topology/TopologyManagerTest.java b/src/test/java/net/floodlightcontroller/topology/TopologyManagerTest.java
index 1cf344d..06b48a2 100644
--- a/src/test/java/net/floodlightcontroller/topology/TopologyManagerTest.java
+++ b/src/test/java/net/floodlightcontroller/topology/TopologyManagerTest.java
@@ -15,7 +15,7 @@
 import org.slf4j.LoggerFactory;
 
 public class TopologyManagerTest extends FloodlightTestCase {
-    protected static Logger log = LoggerFactory.getLogger(TopologyManagerTest.class);
+    protected final static Logger log = LoggerFactory.getLogger(TopologyManagerTest.class);
     TopologyManager tm;
     FloodlightModuleContext fmc;
     
diff --git a/src/test/java/net/onrc/onos/ofcontroller/core/internal/LinkStorageImplTest.java b/src/test/java/net/onrc/onos/ofcontroller/core/internal/LinkStorageImplTest.java
index 9b1c4d6..fcc753f 100644
--- a/src/test/java/net/onrc/onos/ofcontroller/core/internal/LinkStorageImplTest.java
+++ b/src/test/java/net/onrc/onos/ofcontroller/core/internal/LinkStorageImplTest.java
@@ -40,7 +40,7 @@
 @RunWith(PowerMockRunner.class)
 @PrepareForTest({LinkStorageImpl.class, GraphDBConnection.class, GraphDBOperation.class})
 public class LinkStorageImplTest {
-	protected static Logger log = LoggerFactory.getLogger(LinkStorageImplTest.class);
+	protected final static Logger log = LoggerFactory.getLogger(LinkStorageImplTest.class);
 
 	private static ILinkStorage linkStorage;
 	
diff --git a/src/test/java/net/onrc/onos/ofcontroller/core/internal/TestableGraphDBOperation.java b/src/test/java/net/onrc/onos/ofcontroller/core/internal/TestableGraphDBOperation.java
index c695f8d..385b49d 100644
--- a/src/test/java/net/onrc/onos/ofcontroller/core/internal/TestableGraphDBOperation.java
+++ b/src/test/java/net/onrc/onos/ofcontroller/core/internal/TestableGraphDBOperation.java
@@ -32,7 +32,7 @@
  *
  */
 public class TestableGraphDBOperation extends GraphDBOperation {
-	protected static Logger log = LoggerFactory.getLogger(TestableGraphDBOperation.class);
+	protected final static Logger log = LoggerFactory.getLogger(TestableGraphDBOperation.class);
 
 	protected List<TestSwitchObject> switches;
 	protected List<TestPortObject> ports;
diff --git a/src/test/java/net/onrc/onos/ofcontroller/devicemanager/internal/DeviceStorageImplTest.java b/src/test/java/net/onrc/onos/ofcontroller/devicemanager/internal/DeviceStorageImplTest.java
index de8be4e..89d4b92 100644
--- a/src/test/java/net/onrc/onos/ofcontroller/devicemanager/internal/DeviceStorageImplTest.java
+++ b/src/test/java/net/onrc/onos/ofcontroller/devicemanager/internal/DeviceStorageImplTest.java
@@ -40,7 +40,7 @@
 @PrepareForTest({TitanFactory.class, GraphDBConnection.class, GraphDBOperation.class, DeviceStorageImpl.class})
 public class DeviceStorageImplTest{ //extends FloodlightTestCase{
 	
-	protected static Logger log = LoggerFactory.getLogger(SwitchStorageImpl.class);
+	protected final static Logger log = LoggerFactory.getLogger(SwitchStorageImpl.class);
 	
 	String conf;
 	DeviceStorageImpl deviceImpl;
diff --git a/src/test/java/net/onrc/onos/ofcontroller/linkdiscovery/internal/LinkDiscoveryManagerTest.java b/src/test/java/net/onrc/onos/ofcontroller/linkdiscovery/internal/LinkDiscoveryManagerTest.java
index 87b48b2..c3647f2 100644
--- a/src/test/java/net/onrc/onos/ofcontroller/linkdiscovery/internal/LinkDiscoveryManagerTest.java
+++ b/src/test/java/net/onrc/onos/ofcontroller/linkdiscovery/internal/LinkDiscoveryManagerTest.java
@@ -58,7 +58,7 @@
 public class LinkDiscoveryManagerTest extends FloodlightTestCase {
 
     private TestLinkDiscoveryManager ldm;
-    protected static Logger log = LoggerFactory.getLogger(LinkDiscoveryManagerTest.class);
+    protected final static Logger log = LoggerFactory.getLogger(LinkDiscoveryManagerTest.class);
     
     public class TestLinkDiscoveryManager extends LinkDiscoveryManager {
         public boolean isSendLLDPsCalled = false;