CareersPresenter2.java

@Override
protected void onBind() {
    super.onBind();

    asyncProvider.get(new AsyncCallback<MyBundle>() {
        @Override
        public void onFailure(Throwable caught) {
            //Some error message
        }

        @Override
        public void onSuccess(MyBundle result) {
            firstService = result.getFirstService();
            secondService = result.getSecondService();
        }
    });
    
    //You can now use the objects that are behind the split point
    secondService.functionCall();
}