Remove non-determinism in ImageResourceGenerator.

http://gwt-code-reviews.appspot.com/769802/show
Review by: bobv


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@8606 8db76d5a-ed1c-0410-87a9-c151d255dfc7

user/src/com/google/gwt/resources/rg/ImageResourceGenerator.java

diff --git a/user/src/com/google/gwt/resources/rg/ImageResourceGenerator.java b/user/src/com/google/gwt/resources/rg/ImageResourceGenerator.java
index 5f926dc..ee835c3 100644
--- a/user/src/com/google/gwt/resources/rg/ImageResourceGenerator.java
+++ b/user/src/com/google/gwt/resources/rg/ImageResourceGenerator.java
@@ -41,7 +41,7 @@
 import java.io.File;
 import java.io.IOException;
 import java.net.URL;
-import java.util.HashMap;
+import java.util.LinkedHashMap;
 import java.util.Map;
 import java.util.Set;
 
@@ -221,8 +221,8 @@
    * ClientBundle .
    */
   static class CachedState {
-    public final Map<BundleKey, BundledImage> bundledImages = new HashMap<BundleKey, BundledImage>();
-    public final Map<BundleKey, ExternalImage> externalImages = new HashMap<BundleKey, ExternalImage>();
+    public final Map<BundleKey, BundledImage> bundledImages = new LinkedHashMap<BundleKey, BundledImage>();
+    public final Map<BundleKey, ExternalImage> externalImages = new LinkedHashMap<BundleKey, ExternalImage>();
   }
 
   /**