Is it possible to get a list/array of all available languages and the display names of every item in every language without having to change the set language of Minecraft?

Seems simple enough, Thanks.

What do I pass in as a parameter to formatMessage(String, Object[])?

I tried passing in an ItemStack, that wasn't it

 

        List<String> languages = new ArrayList<String>();
        languages.add("en_US");

        Locale testLocale = new Locale();
        testLocale.loadLocaleDataFiles(Minecraft.getMinecraft().getResourceManager(), languages);

        ItemStack stack = new ItemStack(Items.IRON_INGOT);

        FMLLog.bigWarning(testLocale.formatMessage("%s", new Object[]{stack.getUnlocalizedName() + ".name"}));

 

 

I might need a hint as to what classes I should look at. I suspect the I18n class and LanguageMap class in net.minecraft.util.text.translation