public CompletionStage<Account> get(Long id) {
        return supplyAsync(() -> wrap(em -> Failsafe.with(circuitBreaker).get(() -> lookup(em, id))));
    }

var Q = require('q')

Q.all([ repository.get(id1), repository.get(id2) ])
    .then(result -> {
        console.log(result[0] + ' ' + result[1])
     })

CompletableFuture<CompletionStage<Account>> first = CompletableFuture.supplyAsync(() -> repository.get(actionActionTuple._1.getAccountId()));
CompletableFuture<CompletionStage<Account>> second = CompletableFuture.supplyAsync(() -> repository.get(actionActionTuple._2.getAccountId()));

return CompletableFuture.allOf(first, second)
        .thenAcceptAsync(res -> {
            System.out.println("res = " + res);
        });