From 779a0122fd8b8d0b221e45a17c79f55c99e4f4cb Mon Sep 17 00:00:00 2001
From: Hans-Christoph Steiner <hans@eds.org>
Date: Thu, 16 May 2019 17:41:49 +0200
Subject: [PATCH] fix ConcurrentModificationException crash in LocalRepoService

https://stackoverflow.com/a/602660

java.util.ConcurrentModificationException
    at java.util.HashMap$HashIterator.nextEntry(HashMap.java:851)
    at java.util.HashMap$ValueIterator.next(HashMap.java:879)
    at org.fdroid.fdroid.localrepo.LocalRepoManager.copyIconsToRepo(LocalRepoManager.java:296)
    at org.fdroid.fdroid.localrepo.LocalRepoService$1.run(LocalRepoService.java:131)
---
 .../java/org/fdroid/fdroid/localrepo/LocalRepoManager.java    | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/src/full/java/org/fdroid/fdroid/localrepo/LocalRepoManager.java b/app/src/full/java/org/fdroid/fdroid/localrepo/LocalRepoManager.java
index 7bd4063f1..c495ebd2e 100644
--- a/app/src/full/java/org/fdroid/fdroid/localrepo/LocalRepoManager.java
+++ b/app/src/full/java/org/fdroid/fdroid/localrepo/LocalRepoManager.java
@@ -43,10 +43,10 @@ import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Date;
-import java.util.HashMap;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
 import java.util.jar.JarEntry;
 import java.util.jar.JarOutputStream;
 
@@ -71,7 +71,7 @@ public final class LocalRepoManager {
             "swap-tick-not-done.png",
     };
 
-    private final Map<String, App> apps = new HashMap<>();
+    private final Map<String, App> apps = new ConcurrentHashMap<>();
 
     private final SanitizedFile xmlIndexJar;
     private final SanitizedFile xmlIndexJarUnsigned;