diff --git a/spring-core/src/main/java/org/springframework/util/ObjectUtils.java b/spring-core/src/main/java/org/springframework/util/ObjectUtils.java
index eaf97d9a618..6edba426b81 100644
--- a/spring-core/src/main/java/org/springframework/util/ObjectUtils.java
+++ b/spring-core/src/main/java/org/springframework/util/ObjectUtils.java
@@ -901,7 +901,7 @@ public abstract class ObjectUtils {
 	 */
 	public static String nullSafeConciseToString(@Nullable Object obj) {
 		if (obj == null) {
-			return "null";
+			return NULL_STRING;
 		}
 		if (obj instanceof Optional<?> optional) {
 			return (optional.isEmpty() ? "Optional.empty" :