From 9caaac6efb64628531cf0fdbe34236c6b4399b00 Mon Sep 17 00:00:00 2001
From: sirjonasxx <36828922+sirjonasxx@users.noreply.github.com>
Date: Mon, 23 Aug 2021 02:45:50 +0200
Subject: [PATCH] quick fix

---
 G-Earth/src/main/java/gearth/extensions/ExtensionBase.java | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/G-Earth/src/main/java/gearth/extensions/ExtensionBase.java b/G-Earth/src/main/java/gearth/extensions/ExtensionBase.java
index 542a3c6..4abe942 100644
--- a/G-Earth/src/main/java/gearth/extensions/ExtensionBase.java
+++ b/G-Earth/src/main/java/gearth/extensions/ExtensionBase.java
@@ -7,10 +7,7 @@ import gearth.services.packet_info.PacketInfo;
 import gearth.services.packet_info.PacketInfoManager;
 import org.reactfx.util.Lists;
 
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
 import java.util.function.BiFunction;
 import java.util.function.Consumer;
 import java.util.function.Function;
@@ -119,7 +116,7 @@ public abstract class ExtensionBase extends IExtension {
                         hashOrNameIncomingListeners :
                         hashOrNameOutgoingListeners ;
 
-        List<MessageListener> correctListeners = new ArrayList<>();
+        Set<MessageListener> correctListeners = new HashSet<>();
 
         synchronized (listeners) {
             if (listeners.containsKey(-1)) { // registered on all packets