SONAR Suggestion - protected members in final classes are pointless

Change-Id: Ie34d86aecf181e73867a14864d75e0db8a8f48f3
diff --git a/apps/mappingmanagement/api/src/main/java/org/onosproject/mapping/codec/EncodeMappingInstructionCodecHelper.java b/apps/mappingmanagement/api/src/main/java/org/onosproject/mapping/codec/EncodeMappingInstructionCodecHelper.java
index fffa872..fa04df8 100644
--- a/apps/mappingmanagement/api/src/main/java/org/onosproject/mapping/codec/EncodeMappingInstructionCodecHelper.java
+++ b/apps/mappingmanagement/api/src/main/java/org/onosproject/mapping/codec/EncodeMappingInstructionCodecHelper.java
@@ -28,7 +28,7 @@
  * JSON encoding of MappingInstructions.
  */
 public final class EncodeMappingInstructionCodecHelper {
-    protected static final Logger log = getLogger(EncodeMappingInstructionCodecHelper.class);
+    private static final Logger log = getLogger(EncodeMappingInstructionCodecHelper.class);
     private final MappingInstruction instruction;
     private final CodecContext context;