SONAR Suggestion - protected members in final classes are pointless

Change-Id: Ie34d86aecf181e73867a14864d75e0db8a8f48f3
diff --git a/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/subtlv/SubTlvToBytes.java b/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/subtlv/SubTlvToBytes.java
index d052bfc..a7bb08f 100644
--- a/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/subtlv/SubTlvToBytes.java
+++ b/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/subtlv/SubTlvToBytes.java
@@ -27,7 +27,7 @@
  */
 public final class SubTlvToBytes {
 
-    protected static final Logger log = LoggerFactory.getLogger(SubTlvToBytes.class);
+    private static final Logger log = LoggerFactory.getLogger(SubTlvToBytes.class);
 
     /**
      * Creates an instance.