Reject private JUnit Jupiter lifecycle methods annotated with @⁠Autowired

Closes gh-32627

spring-test/src/main/java/org/springframework/test/context/junit/jupiter/SpringExtension.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 the original author or authors.
+ * Copyright 2002-2024 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.
@@ -20,7 +20,6 @@ import java.lang.annotation.Annotation;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Executable;
 import java.lang.reflect.Method;
-import java.lang.reflect.Modifier;
 import java.lang.reflect.Parameter;
 import java.util.Arrays;
 import java.util.List;
@@ -118,9 +117,7 @@ public class SpringExtension implements BeforeAllCallback, AfterAllCallback, Tes
 			List.of(BeforeAll.class, AfterAll.class, BeforeEach.class, AfterEach.class, Testable.class);
 
 	private static final MethodFilter autowiredTestOrLifecycleMethodFilter =
-			ReflectionUtils.USER_DECLARED_METHODS
-					.and(method -> !Modifier.isPrivate(method.getModifiers()))
-					.and(SpringExtension::isAutowiredTestOrLifecycleMethod);
+			ReflectionUtils.USER_DECLARED_METHODS.and(SpringExtension::isAutowiredTestOrLifecycleMethod);
 
 
 	/**

spring-test/src/test/java/org/springframework/test/context/junit/jupiter/AutowiredConfigurationErrorsIntegrationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2024 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.
@@ -65,9 +65,11 @@ class AutowiredConfigurationErrorsIntegrationTests {
 	@ParameterizedTest
 	@ValueSource(classes = {
 		StaticAutowiredBeforeAllMethod.class,
+		StaticAutowiredPrivateBeforeAllMethod.class,
 		StaticAutowiredAfterAllMethod.class,
 		AutowiredBeforeEachMethod.class,
 		AutowiredAfterEachMethod.class,
+		AutowiredPrivateAfterEachMethod.class,
 		AutowiredTestMethod.class,
 		AutowiredRepeatedTestMethod.class,
 		AutowiredParameterizedTestMethod.class
@@ -166,6 +168,21 @@ class AutowiredConfigurationErrorsIntegrationTests {
 		}
 	}
 
+	@SpringJUnitConfig(Config.class)
+	@FailingTestCase
+	static class StaticAutowiredPrivateBeforeAllMethod {
+
+		@Autowired
+		@BeforeAll
+		private static void beforeAll(TestInfo testInfo) {
+		}
+
+		@Test
+		@DisplayName(DISPLAY_NAME)
+		void test() {
+		}
+	}
+
 	@SpringJUnitConfig(Config.class)
 	@TestInstance(PER_CLASS)
 	@FailingTestCase
@@ -243,6 +260,22 @@ class AutowiredConfigurationErrorsIntegrationTests {
 		}
 	}
 
+	@SpringJUnitConfig(Config.class)
+	@FailingTestCase
+	static class AutowiredPrivateAfterEachMethod {
+
+		@Test
+		@DisplayName(DISPLAY_NAME)
+		void test() {
+		}
+
+		@Autowired
+		@AfterEach
+		private void afterEach(TestInfo testInfo) {
+		}
+	}
+
+
 	@SpringJUnitConfig(Config.class)
 	@FailingTestCase
 	static class AutowiredTestMethod {

src/checkstyle/checkstyle-suppressions.xml

@@ -107,7 +107,7 @@
 	<suppress files="src[\\/]test[\\/]java[\\/]org[\\/]springframework[\\/]test[\\/]util[\\/].+Tests" checks="IllegalImport" id="bannedHamcrestImports"/>
 	<suppress files="src[\\/]test[\\/]java[\\/]org[\\/]springframework[\\/]test[\\/]web[\\/](client|reactive|servlet)[\\/].+Tests" checks="IllegalImport" id="bannedHamcrestImports"/>
 	<suppress files="src[\\/]test[\\/]java[\\/]org[\\/]springframework[\\/]test[\\/]context[\\/](aot|junit4)" checks="SpringJUnit5"/>
-	<suppress files="ContextHierarchyDirtiesContextTests|ClassLevelDirtiesContextTests|ContextConfigurationWithPropertiesExtendingPropertiesAndInheritedLoaderTests|ContextConfigurationWithPropertiesExtendingPropertiesTests|DirtiesContextInterfaceTests|.+WacTests|JUnit4SpringContextWebTests" checks="SpringJUnit5"/>
+	<suppress files="AutowiredConfigurationErrorsIntegrationTests|ContextHierarchyDirtiesContextTests|ClassLevelDirtiesContextTests|ContextConfigurationWithPropertiesExtendingPropertiesAndInheritedLoaderTests|ContextConfigurationWithPropertiesExtendingPropertiesTests|DirtiesContextInterfaceTests|.+WacTests|JUnit4SpringContextWebTests" checks="SpringJUnit5"/>
 	<suppress files=".+TestSuite|ContextHierarchyDirtiesContextTests|ClassLevelDirtiesContextTests|ContextConfigurationWithPropertiesExtendingPropertiesAndInheritedLoaderTests|ContextConfigurationWithPropertiesExtendingPropertiesTests|DirtiesContextInterfaceTests|.+WacTests|JUnit4SpringContextWebTests" checks="IllegalImport" id="bannedJUnit4Imports"/>
 	<suppress files="org[\\/]springframework[\\/]test[\\/]context[\\/].+[\\/](ExpectedExceptionSpringRunnerTests|StandardJUnit4FeaturesTests|ProgrammaticTxMgmtTestNGTests)" checks="RegexpSinglelineJava" id="expectedExceptionAnnotation"/>