[1.20.4] read a minecraft tags file.json and get its content as a text list

Hellow good days 

i have a custome block dead adventurer shaped i use to spawn mobs 

but the mobs i spawn has no equipment zombies without nothing and skeletons without bows

minecraft has a series of json files organizing items and block by categories 

then there is the minecraft:data/minecraft/tags/items/swords.json 

	 {
  "values": [
    "minecraft:diamond_sword",
    "minecraft:stone_sword",
    "minecraft:golden_sword",
    "minecraft:netherite_sword",
    "minecraft:wooden_sword",
    "minecraft:iron_sword"
  ]
}
	

and i got mi own json file with the mines

/home/usuario/workspace/1.20.4/mercmod/src/main/resources/data/minecraft/tags/items/swords.json

	{
  "values": [
    "minecraft:stick",
    "mercmod:knife_steel",
    "mercmod:sword_steel",
    "mercmod:warhammer_steel",
    "mercmod:battleaxe_steel",
    "mercmod:crowbar",
    "mercmod:lance_steel"
  ]
}
	

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i wanna use this files, read them, randomly select one and set it for the mob mainhand i spawning 

i wanna do something like 

	ArrayList<String> list = ItemTags.SWORDS.something_getKeys();
	

data/minecraft/tags/items/arrows.json
data/minecraft/tags/items/axes.json
data/minecraft/tags/items/hoes.json
data/minecraft/tags/items/pickaxes.json
data/minecraft/tags/items/shovels.json
data/minecraft/tags/items/swords.json