Explosive Arrows

package me.henderry2019.ExplosiveArrows;

import org.bukkit.Effect;
import org.bukkit.Material;
import org.bukkit.block.Block;
import org.bukkit.entity.Entity;
import org.bukkit.entity.Player;
import org.bukkit.entity.Projectile;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.ProjectileHitEvent;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.util.BlockIterator;

public class Main extends JavaPlugin implements Listener{

	@Override
	public void onEnable() {
		getLogger().info("Explosive Arrows has been enabled!");
	}

	@Override
	public void onDisable() {

	}

	@SuppressWarnings("deprecation")
	@EventHandler
	public void onPlayerShoot(ProjectileHitEvent e) {
		if (!(e instanceof Player)) {

		}
		BlockIterator iterator = new BlockIterator(e.getEntity().getWorld(), e.getEntity().getLocation().toVector(), e.getEntity().getVelocity().normalize(), 0.0D, 4);
		Block hitBlock = null;
		while(iterator.hasNext()) {
			hitBlock = iterator.next();
			if (hitBlock.getTypeId() != 0) {
				break;
			}
		}
		if (hitBlock.getType() == Material.SNOW_BLOCK) {
			hitBlock.getWorld().playEffect(hitBlock.getLocation(), Effect.STEP_SOUND, hitBlock.getTypeId());
			hitBlock.setType(Material.AIR);
			}
	}
}