Clean up warnings in Gradle build

spring-context/src/test/java/org/springframework/validation/beanvalidation/MethodValidationTests.java

@@ -53,7 +53,7 @@ public class MethodValidationTests {
 		ProxyFactory proxyFactory = new ProxyFactory(bean);
 		proxyFactory.addAdvice(new MethodValidationInterceptor());
 		proxyFactory.addAdvisor(new AsyncAnnotationAdvisor());
-		doTestProxyValidation((MyValidInterface) proxyFactory.getProxy());
+		doTestProxyValidation((MyValidInterface<?>) proxyFactory.getProxy());
 	}
 
 	@Test
@@ -69,6 +69,7 @@ public class MethodValidationTests {
 		ac.close();
 	}
 
+	@SuppressWarnings({ "rawtypes", "unchecked" })
 	private void doTestProxyValidation(MyValidInterface proxy) {
 		assertThat(proxy.myValidMethod("value", 5)).isNotNull();
 		assertThatExceptionOfType(ValidationException.class).isThrownBy(() ->
@@ -88,6 +89,7 @@ public class MethodValidationTests {
 	}
 
 	@Test
+	@SuppressWarnings("resource")
 	public void testLazyValidatorForMethodValidation() {
 		AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(
 				LazyMethodValidationConfig.class, CustomValidatorBean.class,
@@ -96,6 +98,7 @@ public class MethodValidationTests {
 	}
 
 	@Test
+	@SuppressWarnings("resource")
 	public void testLazyValidatorForMethodValidationWithProxyTargetClass() {
 		AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(
 				LazyMethodValidationConfigWithProxyTargetClass.class, CustomValidatorBean.class,