Added test for SpringProperties setFlag method

Issue: SPR-9014
Issue: SPR-11297
(cherry picked from commit 23249cda)

spring-core/src/main/java/org/springframework/core/SpringProperties.java

 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2014 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.
@@ -44,6 +44,8 @@ import org.apache.commons.logging.LogFactory;
  */
 public abstract class SpringProperties {
 
+	private static final String PROPERTIES_RESOURCE_LOCATION = "spring.properties";
+
 	private static final Log logger = LogFactory.getLog(SpringProperties.class);
 
 	private static final Properties localProperties = new Properties();
@@ -52,7 +54,7 @@ public abstract class SpringProperties {
 	static {
 		try {
 			ClassLoader cl = SpringProperties.class.getClassLoader();
-			URL url = cl.getResource("spring.properties");
+			URL url = cl.getResource(PROPERTIES_RESOURCE_LOCATION);
 			if (url != null) {
 				logger.info("Found 'spring.properties' file in local classpath");
 				InputStream is = url.openStream();

spring-core/src/test/java/org/springframework/core/env/StandardEnvironmentTests.java

 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2014 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.
@@ -59,15 +59,15 @@ public class StandardEnvironmentTests {
 		child.setActiveProfiles("c1", "c2");
 		child.getPropertySources().addLast(
 				new MockPropertySource("childMock")
-					.withProperty("childKey", "childVal")
-					.withProperty("bothKey", "childBothVal"));
+						.withProperty("childKey", "childVal")
+						.withProperty("bothKey", "childBothVal"));
 
 		ConfigurableEnvironment parent = new StandardEnvironment();
 		parent.setActiveProfiles("p1", "p2");
 		parent.getPropertySources().addLast(
 				new MockPropertySource("parentMock")
-					.withProperty("parentKey", "parentVal")
-					.withProperty("bothKey", "parentBothVal"));
+						.withProperty("parentKey", "parentVal")
+						.withProperty("bothKey", "parentBothVal"));
 
 		assertThat(child.getProperty("childKey"), is("childVal"));
 		assertThat(child.getProperty("parentKey"), nullValue());
@@ -354,6 +354,13 @@ public class StandardEnvironmentTests {
 		SpringProperties.setProperty("spring.getenv.ignore", null);
 	}
 
+	@Test
+	public void suppressGetenvAccessThroughSpringFlag() {
+		SpringProperties.setFlag("spring.getenv.ignore");
+		assertTrue(environment.getSystemEnvironment().isEmpty());
+		SpringProperties.setProperty("spring.getenv.ignore", null);
+	}
+
 	@Test
 	public void getSystemProperties_withAndWithoutSecurityManager() {
 		System.setProperty(ALLOWED_PROPERTY_NAME, ALLOWED_PROPERTY_VALUE);