From 81311e7516b826b695f1ba221653c96c221ae10b Mon Sep 17 00:00:00 2001
From: Andrew Steinborn <git@steinborn.me>
Date: Sun, 25 Apr 2021 10:14:13 -0400
Subject: [PATCH] Don't attempt to decode empty buffers (fixes #482)

Stuff like this makes me want to drop support for <=1.13 versions of Minecraft.
---
 .../velocitypowered/proxy/protocol/netty/MinecraftDecoder.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftDecoder.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftDecoder.java
index c648d3e16..5243a6796 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftDecoder.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftDecoder.java
@@ -62,7 +62,7 @@ public class MinecraftDecoder extends ChannelInboundHandlerAdapter {
   }
 
   private void tryDecode(ChannelHandlerContext ctx, ByteBuf buf) throws Exception {
-    if (!ctx.channel().isActive()) {
+    if (!ctx.channel().isActive() || !buf.isReadable()) {
       buf.release();
       return;
     }