Google is sticking with Williams & Connolly in its high-stakes copyright showdown with Oracle Corp., notwithstanding the departure of a star Supreme Court advocate.

Kannon Shanmugam decamped for Paul, Weiss, Rifkind, Wharton & Garrison in January, three days after appearing as counsel of record on Google’s petition for certiorari in Google v. Oracle. The search giant is seeking to overturn Federal Circuit decisions that found portions of Java’s application program interfaces are copyrightable, and that Google’s copying of portions of them into its Android operating system is not a fair use.