Example: https://github.com/drtshock/Essentials/blob/2.x/nms/BlockMetaProvider/src/net/ess3/nms/blockmeta/BlockMetaSpawnerProvider.java

No need to write NMS implementations for every new Spigot package version if you use this. This has been tested.

Hi,

I'm aware of this (new) method, however SilkSpawners currently uses other NMS code, too, besides getting and setting the spawner entity. I will add it though and provide it as a fallback if useReflection is false. Thanks :)