Polishing

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

@@ -204,6 +204,17 @@ public class StandardEnvironmentTests {
 		System.getProperties().remove(DEFAULT_PROFILES_PROPERTY_NAME);
 	}
 
+	@Test(expected=IllegalArgumentException.class)
+	public void defaultProfileWithCircularPlaceholder() {
+		System.setProperty(DEFAULT_PROFILES_PROPERTY_NAME, "${spring.profiles.default}");
+		try {
+			environment.getDefaultProfiles();
+		}
+		finally {
+			System.getProperties().remove(DEFAULT_PROFILES_PROPERTY_NAME);
+		}
+	}
+
 	@Test
 	public void getActiveProfiles_systemPropertiesEmpty() {
 		assertThat(environment.getActiveProfiles().length, is(0));