spray

When trying to send a package from the Spigot Plugin, this warning appears I tried to decode it any way or even removed everything, all without success Unknown custom packet identifier: mod_id:channel_id Network Init: public class NetworkHandler { public static final String FD_ID = "mod_id"; public static final String PROTOCOL_VERSION = Integer.toString(1); public static void init() { SimpleChannel network = NetworkRegistry.newSimpleChannel( new ResourceLocation(FD_ID, FDCore.FD_CHANNEL), () -> PROTOCOL_VERSION, PROTOCOL_VERSION::equals, PROTOCOL_VERSION::equals); network.registerMessage(0, UIPacket.class, UIPacket::encode, UIPacket::decode, UIPacket::handle); } } UIPacket: public class UIPacket { private final JsonObject jsonObject; public UIPacket(JsonObject jsonObject) { this.jsonObject = jsonObject; } public static void encode(UIPacket packet, PacketBuffer buf) { buf.writeUtf(packet.jsonObject.toString(), 262144); } public static UIPacket decode(PacketBuffer buf) { int bytesCount = buf.readableBytes(); byte[] imageBytes = new byte[bytesCount]; for (int i = 0; i < bytesCount; ++i) imageBytes[i] = buf.readByte(); // buf.readUtf(262144); return new UIPacket(new JsonParser().parse(new String(imageBytes).substring(1)).getAsJsonObject()); } public static void handle(UIPacket packet, Supplier<NetworkEvent.Context> ctx) { ctx.get().enqueueWork(() -> { JsonObject jsonObject = packet.jsonObject; for (UIHandler handler : Handlers.handlersList) { if (jsonObject.has(handler.getId())) { handler.handle(jsonObject); break; } } }); } Spigot: // init plugin.getServer().getMessenger().registerOutgoingPluginChannel(plugin, CHANNEL); // sending player.sendPluginMessage(plugin, CHANNEL, "text".getBytes(StandardCharsets.UTF_8));