AsyncResponse.java

private void addData(final AsyncResponse asyncResponse, Set<RawNumericMetric> rawData) {
        ListenableFuture<Map<RawNumericMetric,Throwable>> future = metricsService.addData(rawData);
        Futures.addCallback(future, new FutureCallback<Map<RawNumericMetric, Throwable>>() {
            @Override
            public void onSuccess(Map<RawNumericMetric, Throwable> errors) {
                Response jaxrs = Response.ok().type(MediaType.APPLICATION_JSON_TYPE).build();
                asyncResponse.resume(jaxrs);
            }

            @Override
            public void onFailure(Throwable t) {
                asyncResponse.resume(t);
            }
        });
    }