From 84eacc49ed03228a7b0f9f3bc1db637e8b114b71 Mon Sep 17 00:00:00 2001
From: zhuzhuman <zhuzhuman.com>
Date: Sat, 10 Aug 2019 16:17:36 +0800
Subject: [PATCH] Simplify for statement with Collection copy

See gh-17827
---
 .../source/SpringIterableConfigurationPropertySource.java     | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/properties/source/SpringIterableConfigurationPropertySource.java b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/properties/source/SpringIterableConfigurationPropertySource.java
index 247b7e0c64..f0b3adf195 100644
--- a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/properties/source/SpringIterableConfigurationPropertySource.java
+++ b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/properties/source/SpringIterableConfigurationPropertySource.java
@@ -115,9 +115,7 @@ class SpringIterableConfigurationPropertySource extends SpringConfigurationPrope
 		String[] names = getPropertySource().getPropertyNames();
 		List<PropertyMapping> mappings = new ArrayList<>(names.length * 2);
 		for (String name : names) {
-			for (PropertyMapping mapping : getMapper().map(name)) {
-				mappings.add(mapping);
-			}
+			Collections.addAll(mappings, getMapper().map(name));
 		}
 		result = mappings.toArray(new PropertyMapping[0]);
 		if (cache != null) {