Simplify check for null.

1 files changed, 1 insertions, 1 deletions

diff --git a/container-search/src/main/java/com/yahoo/prelude/query/StringInItem.java b/container-search/src/main/java/com/yahoo/prelude/query/StringInItem.java
index 4ff9760d423..ebcf0de1a21 100644
--- a/container-search/src/main/java/com/yahoo/prelude/query/StringInItem.java
+++ b/container-search/src/main/java/com/yahoo/prelude/query/StringInItem.java
@@ -64,7 +64,7 @@ public class StringInItem extends InItem {
     }
 
     public void addToken(String token) {
-        if (token == null) throw new IllegalArgumentException("token must be a string");
+        Objects.requireNonNull(token, "Token string must not be null");
         tokens.add(token);
     }