Clean up warnings in tests in Gradle build

Author: sbrannen

spring-context/src/test/java/org/springframework/aop/framework/CglibProxyTests.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.
@@ -33,7 +33,6 @@
 import org.springframework.aop.testfixture.mixin.LockMixinAdvisor;
 import org.springframework.beans.testfixture.beans.ITestBean;
 import org.springframework.beans.testfixture.beans.TestBean;
-import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextException;
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 import org.springframework.lang.NonNull;
@@ -52,7 +51,7 @@
  * @author Ramnivas Laddad
  * @author Chris Beams
  */
-class CglibProxyTests extends AbstractAopProxyTests implements Serializable {
+class CglibProxyTests extends AbstractAopProxyTests {
 
 	private static final String DEPENDENCY_CHECK_CONTEXT =
 			CglibProxyTests.class.getSimpleName() + "-with-dependency-checking.xml";
@@ -376,8 +375,9 @@ void testExceptionHandling() {
 
 	@Test
 	void testWithDependencyChecking() {
-		ApplicationContext ctx = new ClassPathXmlApplicationContext(DEPENDENCY_CHECK_CONTEXT, getClass());
-		ctx.getBean("testBean");
+		try (ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext(DEPENDENCY_CHECK_CONTEXT, getClass())) {
+			ctx.getBean("testBean");
+		}
 	}
 
 	@Test

spring-context/src/test/java/org/springframework/aop/framework/JdkDynamicProxyTests.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.
@@ -16,8 +16,6 @@
 
 package org.springframework.aop.framework;
 
-import java.io.Serializable;
-
 import org.aopalliance.intercept.MethodInterceptor;
 import org.aopalliance.intercept.MethodInvocation;
 import org.junit.jupiter.api.Test;
@@ -38,7 +36,7 @@
  * @author Chris Beams
  * @since 13.03.2003
  */
-class JdkDynamicProxyTests extends AbstractAopProxyTests implements Serializable {
+class JdkDynamicProxyTests extends AbstractAopProxyTests {
 
 	@Override
 	protected Object createProxy(ProxyCreatorSupport as) {

spring-web/src/test/java/org/springframework/web/bind/support/DefaultDataBinderFactoryTests.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.
@@ -92,6 +92,7 @@ public void validate(Object target, Errors errors, Object... validationHints) {
 		public void validate(Object target, Errors errors) {
 		}
 
+		@SuppressWarnings("unchecked")
 		@Override
 		public <T> T unwrap(Class<T> type) {
 			return (T) this.validator;

spring-webflux/src/test/java/org/springframework/web/reactive/BindingContextTests.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.
@@ -92,6 +92,7 @@ public void validate(Object target, Errors errors, Object... validationHints) {
 		public void validate(Object target, Errors errors) {
 		}
 
+		@SuppressWarnings("unchecked")
 		@Override
 		public <T> T unwrap(Class<T> type) {
 			return (T) this.validator;