That's not news; it's been true for several decades. There isn't another legal way to do it.
The least harmful thing you can do, assuming you need to meet hiring quotas, is to specify that you have X slots for whites and Y slots for nonwhites, and then hire by merit into those separate groups.
That's so clean that it was outlawed very quickly. So instead, you still have X slots for whites and Y slots for nonwhites, but you have to pretend that they're all available to everybody, and you have to stop using objective metrics to hire, because doing that would make you unable to meet quota.
And you have to call Asians "white".