Include servlet support for index.html resources

Issue: #54228642

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

@@ -88,10 +88,9 @@ public class WebMvcAutoConfiguration {
 
 	private static final String[] STATIC_INDEX_HTML_RESOURCES;
 	static {
-		STATIC_INDEX_HTML_RESOURCES = new String[CLASSPATH_RESOURCE_LOCATIONS.length];
+		STATIC_INDEX_HTML_RESOURCES = new String[RESOURCE_LOCATIONS.length];
 		for (int i = 0; i < STATIC_INDEX_HTML_RESOURCES.length; i++) {
-			STATIC_INDEX_HTML_RESOURCES[i] = CLASSPATH_RESOURCE_LOCATIONS[i]
-					+ "index.html";
+			STATIC_INDEX_HTML_RESOURCES[i] = RESOURCE_LOCATIONS[i] + "index.html";
 		}
 	}
 

spring-boot-samples/spring-boot-sample-web-static/src/test/java/org/springframework/boot/sample/ui/SampleWebStaticApplicationTests.java

@@ -8,7 +8,6 @@ import java.util.concurrent.TimeUnit;
 
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
-import org.junit.Ignore;
 import org.junit.Test;
 import org.springframework.boot.SpringApplication;
 import org.springframework.context.ConfigurableApplicationContext;
@@ -27,8 +26,6 @@ import static org.junit.Assert.assertTrue;
  * 
  * @author Dave Syer
  */
-@Ignore
-// FIXME See #54228642
 public class SampleWebStaticApplicationTests {
 
 	private static ConfigurableApplicationContext context;