Suppress deprecation warning in Gradle build

See gh-22181

src/test/java/org/springframework/core/env/PropertyPlaceholderConfigurerEnvironmentIntegrationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2019 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.
@@ -19,19 +19,21 @@ package org.springframework.core.env;
 import static org.springframework.beans.factory.support.BeanDefinitionBuilder.rootBeanDefinition;
 
 import org.junit.Test;
-import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;
 import org.springframework.context.support.GenericApplicationContext;
 
-@SuppressWarnings("resource")
 public class PropertyPlaceholderConfigurerEnvironmentIntegrationTests {
+
 	@Test
+	@SuppressWarnings("deprecation")
 	public void test() {
 		GenericApplicationContext ctx = new GenericApplicationContext();
 		ctx.registerBeanDefinition("ppc",
-				rootBeanDefinition(PropertyPlaceholderConfigurer.class)
+				rootBeanDefinition(org.springframework.beans.factory.config.PropertyPlaceholderConfigurer.class)
 				.addPropertyValue("searchSystemEnvironment", false)
 				.getBeanDefinition());
 		ctx.refresh();
 		ctx.getBean("ppc");
+		ctx.close();
 	}
+
 }