// Main class
public class TestVehicles extends JavaPlugin implements Listener {

    @Override
    public void onEnable() {
        Bukkit.getPluginManager().registerEvents(this, this);
    }

    @EventHandler
    public void onPlace(PlayerInteractEvent event) {
        if (event.getHand() != EquipmentSlot.HAND || event.getClickedBlock() == null || event.getItem() == null || event.getItem().getType() != Material.CHEST) return;
        new MyArmorStand(((CraftWorld) event.getClickedBlock().getWorld()).getHandle(), event.getClickedBlock().getLocation().add(0, 1, 0));

    }
}

// Entity Class
public class MyArmorStand extends EntityArmorStand {

    public MyArmorStand(World world, Location location) {
        super(world, location.getX(), location.getY(), location.getZ());

        world.addEntity(this);
    }
}