Handle uncaught exceptions to avoid console spam

ProtocolLib/src/main/java/com/comphenix/protocol/injector/netty/ChannelInjector.java

@@ -252,6 +252,7 @@ class ChannelInjector extends ByteToMessageDecoder implements Injector {
 			originalChannel.pipeline().addBefore("decoder", "protocol_lib_decoder", this);
 			originalChannel.pipeline().addBefore("protocol_lib_decoder", "protocol_lib_finish", finishHandler);
 			originalChannel.pipeline().addAfter("encoder", "protocol_lib_encoder", protocolEncoder);
+			originalChannel.pipeline().addLast("protocol_lib_exception_handler", new ExceptionHandler());
 
 			// Intercept all write methods
 			channelField.setValue(new ChannelProxy(originalChannel, MinecraftReflection.getPacketClass()) {

ProtocolLib/src/main/java/com/comphenix/protocol/injector/netty/ExceptionHandler.java

@@ -0,0 +1,49 @@
+/**
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2015 dmulloy2
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program;
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307 USA
+ */
+package com.comphenix.protocol.injector.netty;
+
+import io.netty.channel.ChannelHandler;
+import io.netty.channel.ChannelHandlerContext;
+
+import java.nio.channels.ClosedChannelException;
+
+/**
+ * @author dmulloy2
+ */
+
+public class ExceptionHandler implements ChannelHandler {
+
+	@Override
+	public void exceptionCaught(ChannelHandlerContext context, Throwable ex) throws Exception {
+		if (ex instanceof ClosedChannelException) {
+			// Ignore
+		} else {
+			System.err.println("[ProtocolLib] Encountered an uncaught exception in the channel pipeline:");
+			ex.printStackTrace();
+		}
+	}
+
+	@Override
+	public void handlerAdded(ChannelHandlerContext context) throws Exception {
+		// Ignore
+	}
+
+	@Override
+	public void handlerRemoved(ChannelHandlerContext context) throws Exception {
+		// Ignore
+	}
+}