Commands not showing at all

[Ondřej Wrzecionko]

When I join the server and open chat, I cannot see any commands. This is because AvailableCommandsPacket is not sent properly

I tried to copy and modify that packet, and this code worked:

@Override
    public void encode() {
        this.reset();
        //Aliases - not working (even in Steadfast)
        this.putVarInt(0); //Not important
        this.putVarInt(0); //Not important
        this.putVarInt(0); //Not important
        //Put commands data
        this.putVarInt(commands.size());
        commands.forEach((name, versions) -> {
            if (name.equals("help")) return;
            this.putString(name);
            this.putString(versions.versions.get(0).description);
            this.putByte((byte) 0);
            this.putByte((byte) 0);
            this.putLInt(-1); //Aliases not working, so we can just put -1 there
            this.putVarInt(versions.versions.get(0).overloads.size());
            for (CommandOverload overload : versions.versions.get(0).overloads.values()) {
                this.putVarInt(overload.input.parameters.length);
                for (CommandParameter parameter : overload.input.parameters) {
                    this.putString(parameter.name);
                    this.putLInt(0); //Unknown
                    this.putBoolean(parameter.optional);
                }
            }
        });
    }

However, only for one command. This means, that after parameter.optional, there must be more data like parameter type. Also, when sending packet like this, I get [unknown] type with the CommandParameter.

As always, I hope I at least gave you the clue.