minecartexitchecking.java

@EventHandler
public void checkVehicleDismount(VehicleExitEvent e) {
    // If this was an auto-minecart, destroy it
    Vehicle vehicle = e.getVehicle();
    if (vehicle.hasMetadata("autominecart")) {
        vehicle.remove();
        debugmsg("Destroyed an auto-minecart");
    }

}