From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: MrHua269 <mrhua269@gmail.com>
Date: Wed, 8 Jul 2026 21:15:26 +0800
Subject: [PATCH] Fix unpatched task returning of
 ServerConfigurationPacketListenerImpl#disconnectAsync

Inspired by https://github.com/CraftCanvasMC/Canvas/blob/ver/1.21.8/canvas-server/minecraft-patches/sources/net/minecraft/server/network/ServerConfigurationPacketListenerImpl.java.patch
but Canvas loses its main thread checks so fixed that btw

diff --git a/net/minecraft/server/network/ServerConfigurationPacketListenerImpl.java b/net/minecraft/server/network/ServerConfigurationPacketListenerImpl.java
index 77c4670868a95dc7b13461dfa67af34b0a3c329a..0485ce2a56adedc200cc0cd441df7cce88da66a8 100644
--- a/net/minecraft/server/network/ServerConfigurationPacketListenerImpl.java
+++ b/net/minecraft/server/network/ServerConfigurationPacketListenerImpl.java
@@ -299,13 +299,14 @@ public class ServerConfigurationPacketListenerImpl extends ServerCommonPacketLis
     // Paper start
     @Override
     public void disconnectAsync(final net.minecraft.network.DisconnectionDetails disconnectionInfo) {
-        if (this.cserver.isPrimaryThread()) {
+        if (io.papermc.paper.threadedregions.RegionizedServer.isGlobalTickThread()) { // Shiroha - Fix unpatched task returning of ServerConfigurationPacketListenerImpl#disconnectAsync
             this.disconnect(disconnectionInfo);
             return;
         }
 
         this.connection.setReadOnly();
-        this.server.scheduleOnMain(() -> {
+        // this.server.scheduleOnMain(() -> { // Shiroha - Fix unpatched task returning of ServerConfigurationPacketListenerImpl#disconnectAsync
+        io.papermc.paper.threadedregions.RegionizedServer.getInstance().addTask(() -> { // Shiroha - Fix unpatched task returning of ServerConfigurationPacketListenerImpl#disconnectAsync
             this.disconnect(disconnectionInfo); // Currently you cannot cancel disconnect during the config stage
         });
     }