Use new ArrayList(Collection) rather than new and addAll

See gh-22211

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/embedded/undertow/UndertowWebServerFactoryDelegate.java

@@ -189,8 +189,8 @@ class UndertowWebServerFactoryDelegate {
 
 	static List<HttpHandlerFactory> createHttpHandlerFactories(Compression compression, boolean useForwardHeaders,
 			String serverHeader, Shutdown shutdown, HttpHandlerFactory... initialHttpHandlerFactories) {
-		List<HttpHandlerFactory> factories = new ArrayList<HttpHandlerFactory>();
-		factories.addAll(Arrays.asList(initialHttpHandlerFactories));
+		List<HttpHandlerFactory> factories =
+				new ArrayList<HttpHandlerFactory>(Arrays.asList(initialHttpHandlerFactories));
 		if (compression != null && compression.getEnabled()) {
 			factories.add(new CompressionHttpHandlerFactory(compression));
 		}