Is there any error in the judgment against White on his disability discrimination claim?

In any event, even if we perceived some error in the court's ruling, a reversal of the court's nonsuit would be without practical effect at this point. By this opinion, we affirm the judgment against White on his claim of disability discrimination, including the jury's special finding that White did not suffer an adverse employment action. Given that White identified the same adverse employment actions in connection with his retaliation claim and his disability discrimination claim, principles of collateral estoppel would preclude him from relitigating that issue in any subsequent retrial. Our state's high court has made it clear that collateral estoppel precludes "a party to prior litigation from redisputing issues therein decided against him, even when those issues bear on different claims raised in a later case." (Vandenberg v. Superior Court (1999) 21 Cal.4th 815, 828, original italics; In re Joshua J. (1995) 39 Cal.App.4th 984, 993 ["Under collateral estoppel, the litigation and determination of an issue by final judgment is conclusive upon the parties or their privies in a subsequent suit on a different cause of action"].)