Use static-locations properties to locate favicon

Closes gh-5751

Author: venilnoronha

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/ResourceProperties.java

@@ -33,6 +33,7 @@
  * @author Phillip Webb
  * @author Brian Clozel
  * @author Dave Syer
+ * @author Venil Noronha
  * @since 1.1.0
  */
 @ConfigurationProperties(prefix = "spring.resources", ignoreUnknownFields = false)
@@ -117,10 +118,9 @@ private String[] getStaticWelcomePageLocations() {
 	}
 
 	List<Resource> getFaviconLocations() {
-		List<Resource> locations = new ArrayList<Resource>(
-				CLASSPATH_RESOURCE_LOCATIONS.length + 1);
+		List<Resource> locations = new ArrayList<Resource>(staticLocations.length + 1);
 		if (this.resourceLoader != null) {
-			for (String location : CLASSPATH_RESOURCE_LOCATIONS) {
+			for (String location : staticLocations) {
 				locations.add(this.resourceLoader.getResource(location));
 			}
 		}

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/WebMvcAutoConfigurationTests.java

@@ -412,7 +412,7 @@ public void faviconMapping() throws IllegalAccessException {
 		assertThat(this.context.getBeansOfType(SimpleUrlHandlerMapping.class)
 				.get("faviconHandlerMapping"), is(notNullValue()));
 		Map<String, List<Resource>> mappingLocations = getFaviconMappingLocations();
-		assertThat(mappingLocations.get("/**/favicon.ico").size(), equalTo(5));
+		assertThat(mappingLocations.get("/**/favicon.ico").size(), equalTo(6));
 	}
 
 	@Test