1 files changed, 6 insertions, 3 deletions
diff --git a/src/test/java/org/apache/commons/lang3/builder/ReflectionToStringBuilderTest.java b/src/test/java/org/apache/commons/lang3/builder/ReflectionToStringBuilderTest.java
index 2cb118507..39a926b21 100644
--- a/src/test/java/org/apache/commons/lang3/builder/ReflectionToStringBuilderTest.java
+++ b/src/test/java/org/apache/commons/lang3/builder/ReflectionToStringBuilderTest.java
@@ -16,13 +16,16 @@
  */
 package org.apache.commons.lang3.builder;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 public class ReflectionToStringBuilderTest {
 
-    @Test(expected=IllegalArgumentException.class)
+    @Test
     public void testConstructorWithNullObject() {
-        new ReflectionToStringBuilder(null, ToStringStyle.DEFAULT_STYLE, new StringBuffer());
+        assertThrows(IllegalArgumentException.class,
+            () -> new ReflectionToStringBuilder(null, ToStringStyle.DEFAULT_STYLE, new StringBuffer()));
     }
 
 }