From e5378df39c5254b9839ee62d17d0845b234fdbc5 Mon Sep 17 00:00:00 2001
From: Daniel Gultsch <daniel@gultsch.de>
Date: Wed, 22 May 2019 23:58:08 +0200
Subject: [PATCH] synchronize around attributes in toContentValues()

---
 .../java/eu/siacs/conversations/entities/Conversation.java    | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/java/eu/siacs/conversations/entities/Conversation.java b/src/main/java/eu/siacs/conversations/entities/Conversation.java
index 8b02d8be5..8b359713a 100644
--- a/src/main/java/eu/siacs/conversations/entities/Conversation.java
+++ b/src/main/java/eu/siacs/conversations/entities/Conversation.java
@@ -576,7 +576,9 @@ public class Conversation extends AbstractEntity implements Blockable, Comparabl
 		values.put(CREATED, created);
 		values.put(STATUS, status);
 		values.put(MODE, mode);
-		values.put(ATTRIBUTES, attributes.toString());
+		synchronized (this.attributes) {
+			values.put(ATTRIBUTES, attributes.toString());
+		}
 		return values;
 	}