From 5179d2a856172290a1af2a65c2968e3a3122ff8c Mon Sep 17 00:00:00 2001
From: Vitaly Takmazov
Date: Wed, 24 Oct 2018 19:11:20 +0300
Subject: ActivityPub: fix UOE

---
 juick-server/src/main/java/com/juick/server/ActivityPubManager.java | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'juick-server/src/main/java/com')

diff --git a/juick-server/src/main/java/com/juick/server/ActivityPubManager.java b/juick-server/src/main/java/com/juick/server/ActivityPubManager.java
index 1ffd376b..41dd52eb 100644
--- a/juick-server/src/main/java/com/juick/server/ActivityPubManager.java
+++ b/juick-server/src/main/java/com/juick/server/ActivityPubManager.java
@@ -31,9 +31,11 @@ import java.io.IOException;
 import java.io.StringWriter;
 import java.io.Writer;
 import java.net.URI;
+import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 import java.util.Set;
@@ -139,7 +141,9 @@ public class ActivityPubManager implements ActivityListener, NotificationListene
         if (MessageUtils.isReply(msg) && msg.getTo().getUri().toASCIIString().length() > 0) {
             String replier = msg.getTo().getUri().toASCIIString();
             subscribers.add(replier);
-            note.getCc().add(replier);
+            List<String> cc = new ArrayList<>(note.getCc());
+            cc.add(replier);
+            note.setCc(cc);
         }
         subscribers.forEach(acct -> {
             Optional<Context> context = signatureManager.getContext(URI.create(acct));
-- 
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