Need To call ODE45 from java, it shows an error "Could not convert Java argument of type "com.mathw​orks.engin​e.FutureRe​sult" to MATLAB type"

import com.mathworks.engine.*;

public class Main{

public static void main(String[] args) throws Exception{

double startTime = System.currentTimeMillis();

// for (int x = 1; x < 10; x++) {

ODE ode = new ODE ();

MatlabEngine eng = MatlabEngine.startMatlab();

double [] time = {0, 10};

Future<Object> a = eng.fevalAsync("ode45", ode.getEquation(0.3, 0.4), time, 10);

eng.close();

// }

double endTime = System.currentTimeMillis();

double searchTime = endTime - startTime;

System.out.println("Computational time " + searchTime);

}

}