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My current code uses series of asynchronous processes that culminate in results. I need to wrap each of these in such a way that each is accessed by a synchronous method with the result as a return value. I want to use executor services to do this, so as to allow many of these to happen at the same time. I have the feeling that Future might be pertinent to my implementation, but I can't figure out a good way to make this happen. What I have now: public class DoAJob { ResultObject result; public void stepOne() { // Passes self in for a callback otherComponent.doStepOne(this); } // Called back by otherComponent once it has completed doStepOne public void stepTwo(IntermediateData d) { otherComponent.doStepTwo(this, d); } // Called back by otherComponent once it has completed doStepTwo public void stepThree(ResultObject resultFromOtherComponent) { result = resultFromOtherComponent; //Done with process } } This has worked pretty well internally, but now I need to map my process into a synchronous method with a return value like: public ResultObject getResult(){ // ??? What goes here ??? } Does anyone have a good idea about how to implement this elegantly?

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