From 8226f54aa1a2ba1f1af557b352b7f4d9e827eb6b Mon Sep 17 00:00:00 2001
From: Divine Threepwood <divine@openbase.org>
Date: Thu, 3 Aug 2023 22:53:56 +0200
Subject: [PATCH] fix concurrent modification of remote instances.

---
 .../java/org/openbase/bco/dal/remote/action/RemoteAction.java  | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/module/dal/remote/src/main/java/org/openbase/bco/dal/remote/action/RemoteAction.java b/module/dal/remote/src/main/java/org/openbase/bco/dal/remote/action/RemoteAction.java
index 8f0bcb61ea..5bdb822d1b 100644
--- a/module/dal/remote/src/main/java/org/openbase/bco/dal/remote/action/RemoteAction.java
+++ b/module/dal/remote/src/main/java/org/openbase/bco/dal/remote/action/RemoteAction.java
@@ -56,6 +56,7 @@
 
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.*;
 
@@ -73,7 +74,7 @@ public class RemoteAction implements Action {
     private final ActionParameter actionParameter;
     private final ObservableImpl<RemoteAction, ActionDescription> actionDescriptionObservable;
     private final AuthToken authToken;
-    private final List<RemoteAction> impactedRemoteActions = new ArrayList<>();
+    private final List<RemoteAction> impactedRemoteActions = Collections.synchronizedList(new ArrayList<>());
     private final Observer impactActionObserver = new Observer<RemoteAction, ActionDescription>() {
         @Override
         public void update(RemoteAction source, ActionDescription observable) throws Exception {