Suppress warnings in ResponseCreatorsTests

spring-test/src/test/java/org/springframework/test/web/client/response/ResponseCreatorsTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -35,6 +35,7 @@ import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
  *
  * @author Rossen Stoyanchev
  */
+@SuppressWarnings("resource")
 class ResponseCreatorsTests {
 
 	@Test