Simplify ArrayList calling addAll() immediately

CHANMYUNG · snicoll · commit 8380031039d0 · 2018-11-01T17:10:16.000+09:00
Closes gh-15033
diff --git a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/SpringApplication.java b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/SpringApplication.java
@@ -1304,8 +1304,7 @@ private static void close(ApplicationContext context) {
 	}
 
 	private static <E> Set<E> asUnmodifiableOrderedSet(Collection<E> elements) {
-		List<E> list = new ArrayList<>();
-		list.addAll(elements);
+		List<E> list = new ArrayList<>(elements);
 		list.sort(AnnotationAwareOrderComparator.INSTANCE);
 		return new LinkedHashSet<>(list);
 	}

Original file line number	Diff line number	Diff line change
`@@ -1304,8 +1304,7 @@ private static void close(ApplicationContext context) {`
`1304`	`1304`	`}`
`1305`	`1305`
`1306`	`1306`	`private static <E> Set<E> asUnmodifiableOrderedSet(Collection<E> elements) {`
`1307`		`- List<E> list = new ArrayList<>();`
`1308`		`- list.addAll(elements);`
	`1307`	`+ List<E> list = new ArrayList<>(elements);`
`1309`	`1308`	`list.sort(AnnotationAwareOrderComparator.INSTANCE);`
`1310`	`1309`	`return new LinkedHashSet<>(list);`
`1311`	`1310`	`}`