Describe the bug
Hi! Just now i work on my plugin using ProtocolLib. I use MapData packet (clientbound) and the PacketWrapper repository has wrapper for this packet. This wrapper has a method for adding MapIcon's array, but this method throws an exception after trying to construct the MapIcon NMS handle (see screenshot below).

To Reproduce
Steps to reproduce the behavior:

1. Try to use #setMapIcons() in this wrapper class.

Expected behavior
This method must set an array of MapIcon handles in the packet container, but actually fails.

Screenshots
The exception in console.

Version Info
Pastebin.

thank you for the report! i'll go look into this now