What I sometimes do is to provide a callback parameter for methods that do 
async requests if I want to be notified once the async request finishes.

So basically:

void executeAllTheseStuff() {
   doAsyncStuff(new Callback() {
      @Override
      public void onSuccess() {
         doStuffWhenAsyncIsDone();
      }
   });
}

void doAsyncStuff(final Callback cb) {
   // ...
   request.fire(new Receiver() {
      public void onSuccess() {
        doOtherThings();
        if(cb != null) {
          cb.onSuccess();
        }
      }
   }
}

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