Items flags

HIDE_ENCHANTS,
HIDE_ATTRIBUTES,
HIDE_UNBREAKABLE,
HIDE_DESTROYS,
HIDE_PLACED_ON,
HIDE_POTION_EFFECTS;

ItemStack item;
ItemMeta meta = item.getItemMeta();
meta.addItemFlags(ItemFlag.HIDE_ATTRIBUTES, ItemFlag.HIDE_UNBREAKABLE, ...);