diff --git a/spring-test/src/test/java/org/springframework/test/context/junit4/FailingBeforeAndAfterMethodsTestNGTests.java b/spring-test/src/test/java/org/springframework/test/context/junit4/FailingBeforeAndAfterMethodsTestNGTests.java
index 5c729de95ed..61abf80a6cc 100644
--- a/spring-test/src/test/java/org/springframework/test/context/junit4/FailingBeforeAndAfterMethodsTestNGTests.java
+++ b/spring-test/src/test/java/org/springframework/test/context/junit4/FailingBeforeAndAfterMethodsTestNGTests.java
@@ -34,6 +34,7 @@ import org.springframework.test.context.transaction.BeforeTransaction;
 import org.springframework.util.ClassUtils;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.fail;
 
 /**
  * Integration tests which verify that '<i>before</i>' and '<i>after</i>'
@@ -112,7 +113,7 @@ public class FailingBeforeAndAfterMethodsTestNGTests {
 
 		@Override
 		public void beforeTestClass(TestContext testContext) {
-			org.testng.Assert.fail("always failing beforeTestClass()");
+			fail("always failing beforeTestClass()");
 		}
 	}
 
@@ -120,7 +121,7 @@ public class FailingBeforeAndAfterMethodsTestNGTests {
 
 		@Override
 		public void afterTestClass(TestContext testContext) {
-			org.testng.Assert.fail("always failing afterTestClass()");
+			fail("always failing afterTestClass()");
 		}
 	}
 
@@ -128,7 +129,7 @@ public class FailingBeforeAndAfterMethodsTestNGTests {
 
 		@Override
 		public void prepareTestInstance(TestContext testContext) throws Exception {
-			org.testng.Assert.fail("always failing prepareTestInstance()");
+			fail("always failing prepareTestInstance()");
 		}
 	}
 
@@ -136,7 +137,7 @@ public class FailingBeforeAndAfterMethodsTestNGTests {
 
 		@Override
 		public void beforeTestMethod(TestContext testContext) {
-			org.testng.Assert.fail("always failing beforeTestMethod()");
+			fail("always failing beforeTestMethod()");
 		}
 	}
 
@@ -144,7 +145,7 @@ public class FailingBeforeAndAfterMethodsTestNGTests {
 
 		@Override
 		public void beforeTestExecution(TestContext testContext) {
-			org.testng.Assert.fail("always failing beforeTestExecution()");
+			fail("always failing beforeTestExecution()");
 		}
 	}
 
@@ -152,7 +153,7 @@ public class FailingBeforeAndAfterMethodsTestNGTests {
 
 		@Override
 		public void afterTestExecution(TestContext testContext) {
-			org.testng.Assert.fail("always failing afterTestExecution()");
+			fail("always failing afterTestExecution()");
 		}
 	}
 
@@ -160,7 +161,7 @@ public class FailingBeforeAndAfterMethodsTestNGTests {
 
 		@Override
 		public void afterTestMethod(TestContext testContext) {
-			org.testng.Assert.fail("always failing afterTestMethod()");
+			fail("always failing afterTestMethod()");
 		}
 	}
 
@@ -210,7 +211,7 @@ public class FailingBeforeAndAfterMethodsTestNGTests {
 
 		@BeforeTransaction
 		public void beforeTransaction() {
-			org.testng.Assert.fail("always failing beforeTransaction()");
+			fail("always failing beforeTransaction()");
 		}
 	}
 
@@ -223,7 +224,7 @@ public class FailingBeforeAndAfterMethodsTestNGTests {
 
 		@AfterTransaction
 		public void afterTransaction() {
-			org.testng.Assert.fail("always failing afterTransaction()");
+			fail("always failing afterTransaction()");
 		}
 	}
 
diff --git a/spring-web/src/test/java/org/springframework/http/codec/json/Jackson2TokenizerTests.java b/spring-web/src/test/java/org/springframework/http/codec/json/Jackson2TokenizerTests.java
index 3ad2305b324..31641b9347d 100644
--- a/spring-web/src/test/java/org/springframework/http/codec/json/Jackson2TokenizerTests.java
+++ b/spring-web/src/test/java/org/springframework/http/codec/json/Jackson2TokenizerTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -44,7 +44,7 @@ import org.springframework.core.testfixture.io.buffer.AbstractLeakCheckingTests;
 import static java.util.Arrays.asList;
 import static java.util.Collections.singletonList;
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.jupiter.api.Assertions.fail;
+import static org.assertj.core.api.Assertions.fail;
 
 /**
  * @author Arjen Poutsma
@@ -339,7 +339,7 @@ public class Jackson2TokenizerTests extends AbstractLeakCheckingTests {
 						}
 					}
 					catch (IOException ex) {
-						fail(ex);
+						fail(ex.getMessage(), ex);
 					}
 				})
 				.verifyComplete();
diff --git a/src/checkstyle/checkstyle.xml b/src/checkstyle/checkstyle.xml
index a298ea57386..f542605d243 100644
--- a/src/checkstyle/checkstyle.xml
+++ b/src/checkstyle/checkstyle.xml
@@ -233,14 +233,14 @@
 		<module name="com.puppycrawl.tools.checkstyle.checks.regexp.RegexpSinglelineJavaCheck">
 			<property name="id" value="junit4Assertions"/>
 			<property name="maximum" value="0"/>
-			<property name="format" value="org\.junit\.Assert\.assert"/>
+			<property name="format" value="org\.junit\.Assert"/>
 			<property name="message" value="Please use AssertJ assertions."/>
 			<property name="ignoreComments" value="true"/>
 		</module>
 		<module name="com.puppycrawl.tools.checkstyle.checks.regexp.RegexpSinglelineJavaCheck">
 			<property name="id" value="junitJupiterAssertions"/>
 			<property name="maximum" value="0"/>
-			<property name="format" value="org\.junit\.jupiter\.api\.Assertions\.assert"/>
+			<property name="format" value="org\.junit\.jupiter\.api\.Assertions"/>
 			<property name="message" value="Please use AssertJ assertions."/>
 			<property name="ignoreComments" value="true"/>
 		</module>
@@ -248,7 +248,7 @@
 			<property name="id" value="testNGAssertions"/>
 			<property name="maximum" value="0"/>
 			<!-- should cover org.testng.Assert and org.testng.AssertJUnit -->
-			<property name="format" value="org\.testng\.Assert(JUnit)?\.assert"/>
+			<property name="format" value="org\.testng\.Assert(JUnit)?"/>
 			<property name="message" value="Please use AssertJ assertions."/>
 			<property name="ignoreComments" value="true"/>
 		</module>