int[] keys = new int[size];
        for (int i = 0; i < size; i++) {
          keys[i] = rng.nextInt();
        }
        return createTreap(Ints.asList(keys));
      }

      // See http://en.wikipedia.org/wiki/Treap for details on the algorithm.
      private Optional<BinaryNode> createTreap(List<Integer> keys) {
        if (keys.isEmpty()) {
          return Optional.absent();
        }
        int minIndex = 0;

        int[] keys = new int[size];
        for (int i = 0; i < size; i++) {
          keys[i] = rng.nextInt();
        }
        return createTreap(Ints.asList(keys));
      }

      // See http://en.wikipedia.org/wiki/Treap for details on the algorithm.
      private Optional<BinaryNode> createTreap(List<Integer> keys) {
        if (keys.isEmpty()) {
          return Optional.absent();
        }
        int minIndex = 0;

        Smb2QueryDirectoryRequest query = new Smb2QueryDirectoryRequest(th.getConfig());
        query.setFileName(getWildcard());
        create.chain(query);
        Smb2CreateResponse createResp;
        try {
            createResp = th.send(create);
        }
        catch ( SmbException e ) {
            Smb2CreateResponse cr = create.getResponse();

		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	createResp := madmin.AddServiceAccountResp{
		Credentials: madmin.Credentials{
			AccessKey:  newCred.AccessKey,
			SecretKey:  newCred.SecretKey,
			Expiration: newCred.Expiration,
		},
	}

	data, err := json.Marshal(createResp)
	if err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

            return (T) createResp.getNextResponse();
        }
        catch (
            CIFSException |
            RuntimeException e ) {
            try {
                // make sure that the handle is closed when one of the requests fails
                Smb2CreateResponse createResp = cr.getResponse();
                if ( createResp.isReceived() && createResp.getStatus() == NtStatus.NT_STATUS_OK ) {

		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	createResp := madmin.AddServiceAccountResp{
		Credentials: madmin.Credentials{
			AccessKey:  newCred.AccessKey,
			SecretKey:  newCred.SecretKey,
			Expiration: newCred.Expiration,
		},
	}

	data, err := json.Marshal(createResp)
	if err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}