[ONOS-2499]update accordingly for ONOS-2408's review recommendation
Change-Id: I24e7c4acbe38e4286b994c5bf50d22def945fb29
diff --git a/ovsdb/rfc/src/main/java/org/onosproject/ovsdb/rfc/notation/Mutation.java b/ovsdb/rfc/src/main/java/org/onosproject/ovsdb/rfc/notation/Mutation.java
index aaad796..5b5293c 100644
--- a/ovsdb/rfc/src/main/java/org/onosproject/ovsdb/rfc/notation/Mutation.java
+++ b/ovsdb/rfc/src/main/java/org/onosproject/ovsdb/rfc/notation/Mutation.java
@@ -65,9 +65,9 @@
* @param value column data
*/
public Mutation(String column, Mutator mutator, Object value) {
- checkNotNull(column, "column is not null");
- checkNotNull(mutator, "mutator is not null");
- checkNotNull(value, "value is not null");
+ checkNotNull(column, "column cannot be null");
+ checkNotNull(mutator, "mutator cannot be null");
+ checkNotNull(value, "value cannot be null");
this.column = column;
this.mutator = mutator;
this.value = value;