From 7b6de545e788fd8a25818e54a99879e86094e90a Mon Sep 17 00:00:00 2001
From: Dave Syer <dsyer@pivotal.io>
Date: Thu, 8 Oct 2015 10:20:00 +0100
Subject: [PATCH] Change HashSet to LinkedHashSet to preserve order of file
 extensions

Fixes gh-4111
---
 .../org/springframework/boot/env/PropertySourcesLoader.java   | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/spring-boot/src/main/java/org/springframework/boot/env/PropertySourcesLoader.java b/spring-boot/src/main/java/org/springframework/boot/env/PropertySourcesLoader.java
index f3d51484e2..9ae250f427 100644
--- a/spring-boot/src/main/java/org/springframework/boot/env/PropertySourcesLoader.java
+++ b/spring-boot/src/main/java/org/springframework/boot/env/PropertySourcesLoader.java
@@ -18,7 +18,7 @@ package org.springframework.boot.env;
 
 import java.io.IOException;
 import java.util.Arrays;
-import java.util.HashSet;
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Set;
 
@@ -199,7 +199,7 @@ public class PropertySourcesLoader {
 	 * @return the file extensions
 	 */
 	public Set<String> getAllFileExtensions() {
-		Set<String> fileExtensions = new HashSet<String>();
+		Set<String> fileExtensions = new LinkedHashSet<String>();
 		for (PropertySourceLoader loader : this.loaders) {
 			fileExtensions.addAll(Arrays.asList(loader.getFileExtensions()));
 		}