public Future<?>  greetMeSometimeAsync(String requestType, 
                                           AsyncHandler<GreetMeSometimeResponse> asyncHandler) { 
        return null; 
        /*not called */
    }
public Future<?>  greetMeSometimeAsync(String requestType, 
                                           AsyncHandler<GreetMeSometimeResponse> asyncHandler) { 
        return null; 
       
    }
public future<?> greetmesometimeasync(string requesttype, asynchandler<greetmesometimeresponse> asynchandler) { return null; }