Hey,

I've got a Problem with handling packets. I try to send a packet wich contains some Information to the server whos going to send it to all Players. Like a broadcast packet. It's working fine in eclipse but when I compile the mod and put it in my mods Folder it's not working anymore. It seems that the packet was sent to the wrong PacketHandler.

Here is the code of the packet Registration:

 

 

public void init(FMLInitializationEvent e) {
    	snWrapper = NetworkRegistry.INSTANCE.newSimpleChannel("RetroChannel");
	snWrapper.registerMessage(PacketSyncMessageHandler.class, PacketSyncDataClient.class, 0, Side.CLIENT);
	snWrapper.registerMessage(PacketSyncRequestMessageHandler.class, PacketSyncRequest.class, 1, Side.SERVER);
	snWrapper.registerMessage(PacketSyncDataHandler.class, PacketSyncDataServer.class, 2, Side.SERVER);


	snWrapper.registerMessage(PacketModelToggleClientHandler.class, PacketModelToggle.class, 3, Side.CLIENT);
	snWrapper.registerMessage(PacketModelToggleServerHandler.class, PacketModelToggle.class, 4, Side.SERVER);

	EventHandler handler = new EventHandler();
    	MinecraftForge.EVENT_BUS.register(handler);
    	FMLCommonHandler.instance().bus().register(handler);

    	NetworkRegistry.INSTANCE.registerGuiHandler(RetroProjectContainer.instance, new GuiHandler());
    }

 

The method is called throug a common Proxy.

Here is my exception:

 

[16:11:14] [Netty Client IO #1/ERROR] [FML]: There was a critical exception handling a packet on channel RetroChannel
io.netty.handler.codec.DecoderException: java.lang.RuntimeException: java.io.EOFException: fieldSize is too long! Length is 12601, but maximum is 0
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:99) ~[MessageToMessageDecoder.class:4.0.15.Final]
at io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111) ~[MessageToMessageCodec.class:4.0.15.Final]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:338) ~[DefaultChannelHandlerContext.class:4.0.15.Final]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:324) ~[DefaultChannelHandlerContext.class:4.0.15.Final]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:785) ~[DefaultChannelPipeline.class:4.0.15.Final]
at io.netty.channel.embedded.EmbeddedChannel.writeInbound(EmbeddedChannel.java:169) ~[EmbeddedChannel.class:4.0.15.Final]
at net.minecraftforge.fml.common.network.internal.FMLProxyPacket.func_148833_a(FMLProxyPacket.java:79) [FMLProxyPacket.class:?]
at net.minecraft.network.NetworkManager.channelRead0(NetworkManager.java:136) [gr.class:?]
at net.minecraft.network.NetworkManager.channelRead0(NetworkManager.java:414) [gr.class:?]
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:103) [simpleChannelInboundHandler.class:4.0.15.Final]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:338) [DefaultChannelHandlerContext.class:4.0.15.Final]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:324) [DefaultChannelHandlerContext.class:4.0.15.Final]
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher.handleClientSideCustomPacket(NetworkDispatcher.java:379) [NetworkDispatcher.class:?]
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher.channelRead0(NetworkDispatcher.java:246) [NetworkDispatcher.class:?]
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher.channelRead0(NetworkDispatcher.java:50) [NetworkDispatcher.class:?]
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:103) [simpleChannelInboundHandler.class:4.0.15.Final]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:338) [DefaultChannelHandlerContext.class:4.0.15.Final]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:324) [DefaultChannelHandlerContext.class:4.0.15.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:153) [byteToMessageDecoder.class:4.0.15.Final]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:338) [DefaultChannelHandlerContext.class:4.0.15.Final]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:324) [DefaultChannelHandlerContext.class:4.0.15.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:153) [byteToMessageDecoder.class:4.0.15.Final]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:338) [DefaultChannelHandlerContext.class:4.0.15.Final]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:324) [DefaultChannelHandlerContext.class:4.0.15.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:153) [byteToMessageDecoder.class:4.0.15.Final]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:338) [DefaultChannelHandlerContext.class:4.0.15.Final]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:324) [DefaultChannelHandlerContext.class:4.0.15.Final]
at io.netty.handler.timeout.ReadTimeoutHandler.channelRead(ReadTimeoutHandler.java:149) [ReadTimeoutHandler.class:4.0.15.Final]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:338) [DefaultChannelHandlerContext.class:4.0.15.Final]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:324) [DefaultChannelHandlerContext.class:4.0.15.Final]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:785) [DefaultChannelPipeline.class:4.0.15.Final]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:132) [AbstractNioByteChannel$NioByteUnsafe.class:4.0.15.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:485) [NioEventLoop.class:4.0.15.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:452) [NioEventLoop.class:4.0.15.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:346) [NioEventLoop.class:4.0.15.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101) [singleThreadEventExecutor$2.class:4.0.15.Final]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
Caused by: java.lang.RuntimeException: java.io.EOFException: fieldSize is too long! Length is 12601, but maximum is 0
at com.google.common.base.Throwables.propagate(Throwables.java:160) ~[guava-17.0.jar:?]
at net.minecraftforge.fml.common.network.ByteBufUtils.readItemStack(ByteBufUtils.java:165) ~[byteBufUtils.class:?]
at de.wolfi.retroproject.client.network.packets.PacketSyncDataClient.fromBytes(PacketSyncDataClient.java:25) ~[PacketSyncDataClient.class:?]
at net.minecraftforge.fml.common.network.simpleimpl.SimpleIndexedCodec.decodeInto(SimpleIndexedCodec.java:17) ~[simpleIndexedCodec.class:?]
at net.minecraftforge.fml.common.network.simpleimpl.SimpleIndexedCodec.decodeInto(SimpleIndexedCodec.java:7) ~[simpleIndexedCodec.class:?]
at net.minecraftforge.fml.common.network.FMLIndexedMessageToMessageCodec.decode(FMLIndexedMessageToMessageCodec.java:81) ~[FMLIndexedMessageToMessageCodec.class:?]
at net.minecraftforge.fml.common.network.FMLIndexedMessageToMessageCodec.decode(FMLIndexedMessageToMessageCodec.java:21) ~[FMLIndexedMessageToMessageCodec.class:?]
at io.netty.handler.codec.MessageToMessageCodec$2.decode(MessageToMessageCodec.java:81) ~[MessageToMessageCodec$2.class:4.0.15.Final]
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89) ~[MessageToMessageDecoder.class:4.0.15.Final]
... 36 more

 

As you can see, it was converted to the wrong Packet.

I don't know what went wrong. Maby because I've registered it twice?

 

Please don't kill me for my grammer :3

 

 

 

...There is no reference of a PacketHandler in the crash report, i have no idea how you thought that was the problem. Post your PacketSyncDataClient class.

The PacketSyncData class should not be called! I'm sending the ModelTogglePacket so why was it converted to a PacketSyncData ?

The PacketSyncData class should not be called! I'm sending the ModelTogglePacket so why was it converted to a PacketSyncData ?

...Obviously it is being called because it is erroring on line 25. And try removing any calls to send the packet. Make sure that you check if you are sending the correct packet. Does ModelTogglePacket extend PacketSyncData?

The exception is thrown because it trying to read a PacketSyncData out of a ModelTogglePacket. ModelTogglePacket implements IMessage as it should.

 

Here is the code where the Packet gets send:

   protected void actionPerformed(GuiButton button)
    {
        if (button.enabled)
        {
        	System.out.println(Cosmetics.values()[button.id]+ " toggled");
           RetroProjectContainer.snWrapper.sendToServer(new PacketModelToggle(Minecraft.getMinecraft().thePlayer.getName(), button.id));
        }
    }

And here is the code for the ServerSide MessageHandler

@Override
public IMessage onMessage(PacketModelToggle message, MessageContext ctx) {
	PacketModelToggleServerHandler.toggle(message.getCosmeticIndex(), message.getPlayer());
	RetroProjectContainer.snWrapper.sendToAll(message);
	return null;
}

It's strange...