Reclusive author J.D. Salinger has never written a sequel to his best-known book, Catcher in the Rye. But that doesn't mean he wants someone else doing it. Salinger's lawyers filed suit this week against an author called J.D. California to stop publication of California's novel 60 Years Later: Coming Through the Rye. It's about a 76-year-old character Mr. C. who escapes from his nursing home (just as Holden Caulfield escapes from prep school in Catcher) and roams around Manhattan. Salinger, 90, hasn't published any new fiction since the mid 1960s, but he has been to court to defend his work or his privacy several times. California, as far as anyone knows, is a first-time author. Weird rumor spotted on the Web by Times book critic Colette Bancroft: Salinger wrote 60 Years Later himself and is suing himself for publicity.