Make Logger instance final as SL4J suggests
diff --git a/src/main/java/net/floodlightcontroller/core/internal/Controller.java b/src/main/java/net/floodlightcontroller/core/internal/Controller.java
index 134a3b0..17f1be8 100644
--- a/src/main/java/net/floodlightcontroller/core/internal/Controller.java
+++ b/src/main/java/net/floodlightcontroller/core/internal/Controller.java
@@ -152,7 +152,7 @@
public class Controller implements IFloodlightProviderService,
IStorageSourceListener {
- protected static Logger log = LoggerFactory.getLogger(Controller.class);
+ protected final static Logger log = LoggerFactory.getLogger(Controller.class);
private static final String ERROR_DATABASE =
"The controller could not communicate with the system database.";