From 00439cfd783b1a6948838e8ebbe5ee6e3778681c Mon Sep 17 00:00:00 2001
From: Vincent Stradiot <vincentstradiot@hotmail.com>
Date: Mon, 15 Dec 2025 21:46:24 +0100
Subject: [PATCH] AssertTests: add test case

AssertTests.isNullWithNonNullObject

Signed-off-by: Vincent Stradiot <vincentstradiot@hotmail.com>
---
 .../src/test/java/org/springframework/util/AssertTests.java | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/spring-core/src/test/java/org/springframework/util/AssertTests.java b/spring-core/src/test/java/org/springframework/util/AssertTests.java
index 1983d07309f..3082bb04ac9 100644
--- a/spring-core/src/test/java/org/springframework/util/AssertTests.java
+++ b/spring-core/src/test/java/org/springframework/util/AssertTests.java
@@ -109,6 +109,12 @@ class AssertTests {
 		Assert.isNull(null, "Bla");
 	}
 
+	@Test
+	void isNullWithNonNullObject() {
+		assertThatIllegalArgumentException().isThrownBy(() -> Assert.isNull("foo", "Bla"))
+				.withMessage("Bla");
+	}
+
 	@Test
 	void isNullWithMessageSupplier() {
 		Assert.isNull(null, () -> "enigma");