class java/util/concurrent/CompletableFuture
runAsync
 (Ljava/lang/Runnable;Ljava/util/concurrent/Executor;)Ljava/util/concurrent/CompletableFuture<Ljava/lang/Void;>;
 (L1java/lang/Runnable;L1java/util/concurrent/Executor;)L1java/util/concurrent/CompletableFuture<Ljava/lang/Void;>;