Enchantment ID

Hello again!

I'm hoping this is a simple question, and I'm just overlooking or misunderstanding or not thinking of something simple.

It seems to be that to make a new enchantment, you have to give that enchantment an ID (below is the Enchantment.class code I'm talking about):

 
protected Enchantment(int p_i1926_1_, int p_i1926_2_, EnumEnchantmentType p_i1926_3_)
    {
        this.effectId = p_i1926_1_;
        this.weight = p_i1926_2_;
        this.type = p_i1926_3_;

        if (enchantmentsList[p_i1926_1_] != null)
        {
            throw new IllegalArgumentException("Duplicate enchantment id! " + this.getClass() + " and " + enchantmentsList[p_i1926_1_].getClass() + " Enchantment ID:" + p_i1926_1_);
        }
        else
        {
            enchantmentsList[p_i1926_1_] = this;
        }
    }

The list seems to be capped at 256, and while that's plenty, it's not quite large enough to be 99% sure your mod's enchantment ID won't conflict with anothers enchantment ID. Is there a .getNextID() I'm missing, or some way to determine a safe ID to use? Or do I need to browse around and hope my ID doesn't clash with another?

Thanks!