added missing synchronize when pushing messages from mam backlog

Daniel Gultsch created 10 years ago

Change summary

src/main/java/eu/siacs/conversations/services/NotificationService.java | 4 
1 file changed, 3 insertions(+), 1 deletion(-)

Detailed changes

src/main/java/eu/siacs/conversations/services/NotificationService.java

@@ -115,7 +115,9 @@ public class NotificationService {
 
 	public void pushFromBacklog(final Message message) {
 		if (notify(message)) {
-			pushToStack(message);
+			synchronized (notifications) {
+				pushToStack(message);
+			}
 		}
 	}