    public void encodeByteArray2() {
        Packet<byte[]> packet = new Packet<>(Parser.BINARY_EVENT);
        packet.data = new byte[2];
        packet.id = 0;
        packet.nsp = "/";
        Helpers.testBin(packet);
    }
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.