From dbbcb78045134766fa4867b26a72016edcc217fe Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Thu, 29 Oct 2015 15:58:27 +0100
Subject: [RecompressArchive] Fix potential concurrent modification case

---
 src/main/java/org/openslx/taskmanager/tasks/RecompressArchive.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/openslx/taskmanager/tasks/RecompressArchive.java b/src/main/java/org/openslx/taskmanager/tasks/RecompressArchive.java
index 1b5cf8a..0bd892f 100644
--- a/src/main/java/org/openslx/taskmanager/tasks/RecompressArchive.java
+++ b/src/main/java/org/openslx/taskmanager/tasks/RecompressArchive.java
@@ -8,6 +8,7 @@ import java.nio.file.Paths;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
+import java.util.concurrent.CopyOnWriteArrayList;
 
 import org.apache.commons.compress.archivers.ArchiveEntry;
 import org.apache.commons.compress.archivers.ArchiveException;
@@ -191,7 +192,7 @@ public class RecompressArchive extends AbstractTask
 		};
 
 		protected ErrorCode errorCode = null;
-		protected List<String> warnings = null;
+		protected List<String> warnings = new CopyOnWriteArrayList<>();
 
 		public static class Entry
 		{
-- 
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