jsprit

        VehicleRoutingProblem.Builder vrpBuilder;
        VehicleTypeImpl vehicleTypeCar;
        VehicleImpl.Builder vehicleBuilder;
        Service.Builder<Delivery> deliveryBuilder;
        VehicleRoutingTransportCostsMatrix.Builder matrixBuilder;
        VehicleRoutingProblem problem;
        VehicleRoutingAlgorithm algorithm;
        UnassignedJobReasonTracker unassignedJobReasonTracker;
        VehicleRoutingProblemSolution bestSolution;

        vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
        matrixBuilder = VehicleRoutingTransportCostsMatrix.Builder.newInstance(false);

        vehicleTypeCar = VehicleTypeImpl.Builder.newInstance("type_car")
                .setProfile("car")
                .addCapacityDimension(0, 5)
                .build();

        vrpBuilder.addVehicle(
            VehicleImpl.Builder.newInstance("VAN1")
                    .setType(vehicleTypeCar)
                    .setReturnToDepot(false)
                    .setEarliestStart(1675976903L)
                    .setLatestArrival(1676063303)
                    .setStartLocation(
                            Location.Builder.newInstance()
                                    .setIndex(0)
                                    .build()
                    )
                    .build()
        );

        vrpBuilder.addJob(
                Delivery.Builder.newInstance("A")
                        .setServiceTime(600)
                        .addSizeDimension(0, 1)
                        .setLocation(
                                Location.Builder.newInstance()
                                        .setIndex(1)
                                        .build()
                        )
                        .addTimeWindow(1675976903d, 1675978603d)
                        .build()
        );

        vrpBuilder.addJob(
                Delivery.Builder.newInstance("B")
                        .setServiceTime(600)
                        .addSizeDimension(0, 1)
                        .setLocation(
                                Location.Builder.newInstance()
                                        .setIndex(2)
                                        .build()
                        )
                        .build()
        );

        vrpBuilder.addJob(
                Delivery.Builder.newInstance("C")
                        .setServiceTime(600)
                        .addSizeDimension(0, 1)
                        .setLocation(
                                Location.Builder.newInstance()
                                        .setIndex(3)
                                        .build()
                        )
                        .build()
        );

        Integer[][] m = {
                new Integer[]{0, 1279, 542, 162},
                new Integer[]{1301, 0, 869, 1375},
                new Integer[]{492, 786, 0, 566},
                new Integer[]{106, 1273, 531, 0}
        };

        for (int i = 0; i < m.length; i++) {
            for (int j = 0; j < m[i].length; j++) {
                matrixBuilder.addTransportTime(
                        String.valueOf(i),
                        String.valueOf(j),
                        m[i][j]
                );
            }
        }

        vrpBuilder.setRoutingCost(matrixBuilder.build());
        vrpBuilder.setFleetSize(VehicleRoutingProblem.FleetSize.FINITE);

        problem = vrpBuilder.build();

        algorithm = Jsprit.Builder.newInstance(problem)
                .setProperty(Jsprit.Parameter.THREADS, String.valueOf(1))
                .setProperty(Jsprit.Parameter.ITERATIONS, String.valueOf(32))
                .buildAlgorithm();

        bestSolution = Solutions.bestOf(algorithm.searchSolutions());

        for (VehicleRoute route : bestSolution.getRoutes()) {
            for (TourActivity activity : route.getActivities()) {
                System.out.println(activity.getLocation().getIndex());
            }
        }