Answers for "turn offf tnt spigot"

spigot disable health regeneration

@EventHandler
    public void onPlayerRegainHealth(EntityRegainHealthEvent event) {
        if(event.getRegainReason() == RegainReason.SATIATED || event.getRegainReason() == RegainReason.REGEN)
            event.setCancelled(true);
    }

spigot disable health regeneration

@EventHandler
    public void onPlayerRegainHealth(EntityRegainHealthEvent event) {
        if(event.getRegainReason() == RegainReason.SATIATED || event.getRegainReason() == RegainReason.REGEN)
            event.setCancelled(true);
    }