Merge pull request #5561 from eddumelendez/gh-5442

* pr/5561:
  Polish contribution
  Fix spring.profiles.active value handling

spring-boot/src/main/java/org/springframework/boot/context/config/ConfigFileApplicationListener.java

@@ -95,6 +95,7 @@ import org.springframework.validation.BindException;
  * @author Phillip Webb
  * @author Stephane Nicoll
  * @author Andy Wilkinson
+ * @author Eddú Meléndez
  */
 public class ConfigFileApplicationListener implements EnvironmentPostProcessor,
 		ApplicationListener<ApplicationEvent>, Ordered {
@@ -582,8 +583,8 @@ public class ConfigFileApplicationListener implements EnvironmentPostProcessor,
 
 		private Set<String> asResolvedSet(String value, String fallback) {
 			List<String> list = Arrays
-					.asList(StringUtils.commaDelimitedListToStringArray(value != null
-							? this.environment.resolvePlaceholders(value) : fallback));
+					.asList(StringUtils.trimArrayElements(StringUtils.commaDelimitedListToStringArray(value != null
+							? this.environment.resolvePlaceholders(value) : fallback)));
 			Collections.reverse(list);
 			return new LinkedHashSet<String>(list);
 		}

spring-boot/src/test/java/org/springframework/boot/context/config/ConfigFileApplicationListenerTests.java

@@ -73,6 +73,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  *
  * @author Phillip Webb
  * @author Dave Syer
+ * @author Eddú Meléndez
  */
 public class ConfigFileApplicationListenerTests {
 
@@ -529,6 +530,20 @@ public class ConfigFileApplicationListenerTests {
 				"applicationConfig: [classpath:/testsetprofiles.yml]");
 	}
 
+	@Test
+	public void yamlSetsMultiProfiles() throws Exception {
+		this.initializer.setSearchNames("testsetmultiprofiles");
+		this.initializer.postProcessEnvironment(this.environment, this.application);
+		assertThat(this.environment.getActiveProfiles()).containsExactly("dev", "healthcheck");
+	}
+
+	@Test
+	public void yamlSetsMultiProfilesWithWithespace() throws Exception {
+		this.initializer.setSearchNames("testsetmultiprofileswhitespace");
+		this.initializer.postProcessEnvironment(this.environment, this.application);
+		assertThat(this.environment.getActiveProfiles()).containsExactly("dev", "healthcheck");
+	}
+
 	@Test
 	public void yamlProfileCanBeChanged() throws Exception {
 		TestPropertySourceUtils.addInlinedPropertiesToEnvironment(this.environment,

spring-boot/src/test/resources/testsetmultiprofiles.yml

+---
+spring:
+  profiles:
+    active: dev,healthcheck
\ No newline at end of file

spring-boot/src/test/resources/testsetmultiprofileswhitespace.yml

+---
+spring:
+  profiles:
+    active: dev, healthcheck
\ No newline at end of file