Thanks for the evaluation.

1. Crashing is always the worst thing to do in our environment. Since it's a game, players don't care about side effects, but they do care about crashing and waiting another 10 minutes for modding Minecraft to boot up.
   Usually, we either add logging where we don't expect nulls to happen at all. In some places, where it can happen due to the code flow, we don't.
   I agree with the unit testing part, but, this is not so easy since mocking Minecraft is not an easy part at all. When we extend our API we plan on improving the way we handle Minecraft libraries to make mocking much easier.