From 051b62a81dccad2c628eedc59bdfbf212a968131 Mon Sep 17 00:00:00 2001
From: Techcable <Techcable@techcable.net>
Date: Tue, 5 Apr 2016 11:00:16 -0700
Subject: [PATCH] Print stack trace when the ByteBuf is not direct.

The issue with ByteBufs not being direct should be fixed as of netty 4.1, and stacktraces provide valuable information.

diff --git a/protocol/src/main/java/net/md_5/bungee/protocol/Varint21FrameDecoder.java b/protocol/src/main/java/net/md_5/bungee/protocol/Varint21FrameDecoder.java
index 29e54dba..6da27fcf 100644
--- a/protocol/src/main/java/net/md_5/bungee/protocol/Varint21FrameDecoder.java
+++ b/protocol/src/main/java/net/md_5/bungee/protocol/Varint21FrameDecoder.java
@@ -51,7 +51,7 @@ public class Varint21FrameDecoder extends ByteToMessageDecoder
                         if ( !DIRECT_WARNING )
                         {
                             DIRECT_WARNING = true;
-                            System.out.println( "Netty is not using direct IO buffers." );
+                            new Throwable("Using a " + in.getClass().getTypeName() + ", not a direct byte buf!").printStackTrace();
                         }
 
                         // See https://github.com/SpigotMC/BungeeCord/issues/1717
-- 
2.14.1