From 6a7f2b86996384f0a7e8f4d3f58b0616ae00d24b Mon Sep 17 00:00:00 2001
From: FatSaw <eklesosek@gmail.com>
Date: Sun, 31 Jul 2022 06:00:48 +0300
Subject: [PATCH] Check if channel is opened before reading packet

---
 .../src/main/java/net/minecraft/server/NetworkManager.java   | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sources/src/main/java/net/minecraft/server/NetworkManager.java b/sources/src/main/java/net/minecraft/server/NetworkManager.java
index 1cc6da9ed..aa0a9b3e2 100644
--- a/sources/src/main/java/net/minecraft/server/NetworkManager.java
+++ b/sources/src/main/java/net/minecraft/server/NetworkManager.java
@@ -365,7 +365,10 @@ public class NetworkManager extends SimpleChannelInboundHandler<Packet<?>> {
 
     @Override
     protected void channelRead0(ChannelHandlerContext channelhandlercontext, Packet object) throws Exception { // CraftBukkit - fix decompile error
-        this.a(channelhandlercontext, object);
+        // FlamePaper - Check if channel is opened before reading packet
+        if (isConnected()) {
+            this.a(channelhandlercontext, object);
+        }
     }
 
     public static class QueuedPacket { // Akarin - default -> public