My plugin that is supposed to give users some bonuses as well as teleport them to home when they right click (either a block or the air) with said item in hand.

ArchangelEyeListener.java

package me.kaguyabot.customitemgenerator;

import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.Sound;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.Action;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.permissions.PermissionAttachment;
import org.bukkit.potion.PotionEffect;
import org.bukkit.potion.PotionEffectType;

import java.util.*;

public class ArchangelEyeListener implements Listener {

    @EventHandler
    public void onPlayerInteract(PlayerInteractEvent e) {
        if(e.getAction().equals(Action.RIGHT_CLICK_AIR) || e.getAction().equals(Action.RIGHT_CLICK_BLOCK)) {
            Player p = e.getPlayer();
            if(e.getItem() != null && e.getItem().getType().equals(Material.ENDER_EYE)
            && e.getItem().containsEnchantment(Enchantment.CHANNELING)
            && e.getItem().getItemMeta().getDisplayName().equalsIgnoreCase(
                    ChatColor.LIGHT_PURPLE + "Archangel's Eye of Liberation")) {
                Logger logger = new Logger();
                HashMap<UUID, PermissionAttachment> perms = new HashMap<UUID, PermissionAttachment>();

                CustomItemGenerator customItemGeneratorClass = new CustomItemGenerator();

                PermissionAttachment attachment = p.addAttachment(customItemGeneratorClass);
                perms.put(p.getUniqueId(), attachment);

                PermissionAttachment pperms = perms.get(p.getUniqueId());
                pperms.setPermission("essentials.home", true);

                p.getInventory().getItemInMainHand().subtract(1);

                p.addPotionEffect(new PotionEffect(PotionEffectType.FIRE_RESISTANCE, 30, 1));
                p.addPotionEffect(new PotionEffect(PotionEffectType.REGENERATION, 15, 2));
                p.addPotionEffect(new PotionEffect(PotionEffectType.ABSORPTION, 30, 2));

                p.sendMessage(ChatColor.GOLD + "A voice from above whispers..." + ChatColor.ITALIC + "\"You have been liberated...\"");

                p.playSound(p.getLocation(), Sound.AMBIENT_CAVE, 2, 0);
                p.playSound(p.getBedSpawnLocation(), Sound.ENTITY_EXPERIENCE_ORB_PICKUP, 2, 0);

                p.performCommand("home");

                pperms.setPermission("essentials.home", false);

                logger.log(String.format("Player {0} consumed 1x" + ChatColor.AQUA +
                        "Archangel's Eye of Liberation to return to safety.", p.getName()));
            }
        }
    }
}

CustomItemGenerator.java

package me.kaguyabot.customitemgenerator;

import org.bukkit.command.CommandExecutor;
import org.bukkit.event.Listener;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;

public final class CustomItemGenerator extends JavaPlugin implements Listener, CommandExecutor {
    @Override
    public void onEnable() {
        PluginManager manager = getServer().getPluginManager();
        manager.registerEvents(new ArchangelEyeListener(), this);

        getLogger().info("[CustomItemGenerator]: Started");
        getCommand("archgive").setExecutor(new ArchgiveCommand());
    }

    @Override
    public void onDisable() {
        getLogger().info("[CustomItemGenerator]: Shutdown");
    }
}