From 65cbc9dc10ae4b4bd872a6d556c446d4c5e6f1b3 Mon Sep 17 00:00:00 2001
From: Hans-Christoph Steiner <hans@eds.org>
Date: Tue, 21 Jun 2016 14:37:01 +0200
Subject: [PATCH] do not crash if there are no cache files to delete

java.lang.NullPointerException
at org.fdroid.fdroid.Utils.clearOldFiles(Utils.java:347)
at org.fdroid.fdroid.CleanCacheService.onHandleIntent(CleanCacheService.java:51)
at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:65)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:194)
at android.os.HandlerThread.run(HandlerThread.java:60)
---
 app/src/main/java/org/fdroid/fdroid/installer/ApkCache.java | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/org/fdroid/fdroid/installer/ApkCache.java b/app/src/main/java/org/fdroid/fdroid/installer/ApkCache.java
index b0dc8b3b8..ce627283b 100644
--- a/app/src/main/java/org/fdroid/fdroid/installer/ApkCache.java
+++ b/app/src/main/java/org/fdroid/fdroid/installer/ApkCache.java
@@ -151,8 +151,12 @@ public class ApkCache {
         if (dir == null) {
             return;
         }
+        File[] files = dir.listFiles();
+        if (files == null) {
+            return;
+        }
         long olderThan = System.currentTimeMillis() - (secondsAgo * 1000L);
-        for (File f : dir.listFiles()) {
+        for (File f : files) {
             if (f.isDirectory()) {
                 clearOldFiles(f, olderThan);
                 f.delete();