Easiest way to get the full id of an item in your hand!
Get the full id of an item so it is easier to spawn in items.
Just hold the item you want to get the id of in your hand and do /itemid
Just drop in your ~/plugins folder!
Get the id of the item in your hand
/itemid
itemid.commands.itemid
After your build the jar, you need to manually add the mcmod.info file to the jar. Do that by running the command below from the root directory of the project:
jar -uf build/libs/itemid-{VERSION}.jar mcmod.info