Forge attempting to cast my pickaxe to a hoe?

[superminerJG]

So I'm trying to add tools, and when I have them all, Forge seems to crash on startup, throwing a RuntimeException. This appears to be due to Forge trying to make an ItemPickaxe reference refer to a subclass of ItemHoe. Here's a gist with the crash log. Using version 14.23.5.2800.

 

Edited May 12, 2019 by superminerJG

[V0idWa1k3r]

This to me looks like you have a 

public static final ItemPickaxe COPPER_PICKAXE

field in your class, annotated with ObjectHolder but the item with the minetech:copper_pickaxe registry name is actually a hoe. As in your hoe item has a pickaxe's registry name.

[superminerJG]

Oof, I didn't even realize! Thanks!