When is the addInformation method called?

[mooL 0]

I looked at the item class but it doesnt say.

[diesieben07 7774]

It is called from ItemStack.getToolTip.

[Draco18s 2425]

Also pretty sure you could have searched the item class for other things besides "addInformation" like "information" or "tooltip" or even just "List<String>" because you know one of the types of the parameters.

[mooL 0]

It is called from ItemStack.getToolTip.

and when is that called? and like what causes it to run? a right click?

[diesieben07 7774]

It is called every frame when the tooltip is being rendered, why do you need to know? You should not care.