From 72cdae761c3257e0686fe678bbb6aaf65a707214 Mon Sep 17 00:00:00 2001
From: dosiecki <ojiikun@gmail.com>
Date: Fri, 16 Oct 2015 16:13:17 -0700
Subject: [PATCH] Fix crash in image prefetch.

---
 .../src/com/newsblur/service/ImagePrefetchService.java         | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/clients/android/NewsBlur/src/com/newsblur/service/ImagePrefetchService.java b/clients/android/NewsBlur/src/com/newsblur/service/ImagePrefetchService.java
index d333086cd..db706194f 100644
--- a/clients/android/NewsBlur/src/com/newsblur/service/ImagePrefetchService.java
+++ b/clients/android/NewsBlur/src/com/newsblur/service/ImagePrefetchService.java
@@ -6,6 +6,7 @@ import com.newsblur.util.AppConstants;
 import com.newsblur.util.ImageCache;
 import com.newsblur.util.PrefsUtils;
 
+import java.util.Collections;
 import java.util.HashSet;
 import java.util.Set;
 
@@ -17,7 +18,7 @@ public class ImagePrefetchService extends SubService {
 
     /** URLs of images contained in recently fetched stories that are candidates for prefetch. */
     static Set<String> ImageQueue;
-    static { ImageQueue = new HashSet<String>(); }
+    static { ImageQueue = Collections.synchronizedSet(new HashSet<String>()); }
 
     public ImagePrefetchService(NBSyncService parent) {
         super(parent);