From 25314b1d17261227f2316cd80b407e318add75de Mon Sep 17 00:00:00 2001
From: AsamK <asamk@gmx.de>
Date: Wed, 10 Nov 2021 10:30:24 +0100
Subject: [PATCH] Synchronize plain text output of incoming messages

---
 src/main/java/org/asamk/signal/ReceiveMessageHandler.java | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/main/java/org/asamk/signal/ReceiveMessageHandler.java b/src/main/java/org/asamk/signal/ReceiveMessageHandler.java
index 26e12809..4e44497f 100644
--- a/src/main/java/org/asamk/signal/ReceiveMessageHandler.java
+++ b/src/main/java/org/asamk/signal/ReceiveMessageHandler.java
@@ -25,6 +25,12 @@ public class ReceiveMessageHandler implements Manager.ReceiveMessageHandler {
 
     @Override
     public void handleMessage(MessageEnvelope envelope, Throwable exception) {
+        synchronized (writer) {
+            handleMessageInternal(envelope, exception);
+        }
+    }
+
+    private void handleMessageInternal(MessageEnvelope envelope, Throwable exception) {
         var source = envelope.sourceAddress();
         writer.println("Envelope from: {} (device: {})",
                 source.map(this::formatContact).orElse("unknown source"),