diff --git a/protocols/netconf/api/src/main/java/org/onosproject/netconf/NetconfSession.java b/protocols/netconf/api/src/main/java/org/onosproject/netconf/NetconfSession.java
index 9481b8d..a38b6df 100644
--- a/protocols/netconf/api/src/main/java/org/onosproject/netconf/NetconfSession.java
+++ b/protocols/netconf/api/src/main/java/org/onosproject/netconf/NetconfSession.java
@@ -140,7 +140,7 @@
      * Retrieves part of the specified configuration based on the filterSchema.
      *
      * @param netconfTargetConfig the targetConfiguration to change
-     * @param mode                selected mode to change the configuration
+     * @param mode                default-operation mode
      * @param newConfiguration    configuration to set
      * @return true if the configuration was edited correctly
      * @throws NetconfException when there is a problem in the communication process on
diff --git a/protocols/netconf/ctl/src/main/java/org/onosproject/netconf/ctl/impl/NetconfSessionMinaImpl.java b/protocols/netconf/ctl/src/main/java/org/onosproject/netconf/ctl/impl/NetconfSessionMinaImpl.java
index b987530..31ec0ac 100644
--- a/protocols/netconf/ctl/src/main/java/org/onosproject/netconf/ctl/impl/NetconfSessionMinaImpl.java
+++ b/protocols/netconf/ctl/src/main/java/org/onosproject/netconf/ctl/impl/NetconfSessionMinaImpl.java
@@ -759,7 +759,7 @@
         rpc.append(EDIT_CONFIG_CLOSE).append("\n");
         rpc.append(RPC_CLOSE);
         rpc.append(ENDPATTERN);
-        log.debug(rpc.toString());
+        log.debug("{}", rpc);
         String reply = sendRequest(rpc.toString());
         return checkReply(reply);
     }