https://youtu.be/ET8Sc9zchPU

package me.enesmelda.MobsAndItems;


import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.inventory.InventoryClickEvent;
import org.bukkit.inventory.ItemFlag;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;



public class SwapWithCursor implements Listener{


	Main plugin;

	public SwapWithCursor(Main plugin) {


		this.plugin = plugin;

	}


	@SuppressWarnings("deprecation")
	@EventHandler
	public void onSwap(InventoryClickEvent e) {




		ItemStack i = new ItemStack(Material.PRISMARINE_SHARD);

		ItemMeta meta = i.getItemMeta();

		meta.setDisplayName(((ChatColor.translateAlternateColorCodes('&', "&b" +"Chaos Shard"))));
		ArrayList<String> lore = new ArrayList<String>();
		lore.add(((ChatColor.translateAlternateColorCodes('&', "&6" +"Material for crafting a summoning Stone"))));
		meta.setLore(lore);
		meta.addItemFlags(ItemFlag.HIDE_ENCHANTS);
		meta.addEnchant(Enchantment.DURABILITY, 10,true);


		ItemStack i2 = new ItemStack(Material.DIAMOND_SWORD);

		ItemMeta cmeta = i2.getItemMeta();

		cmeta.setDisplayName(((ChatColor.translateAlternateColorCodes('&', "&b" +"Test sword"))));
		cmeta.setLore(Arrays.asList("Sword test","","Socket one Empty","Socket two Empty"));
		cmeta.addItemFlags(ItemFlag.HIDE_ENCHANTS);
		cmeta.addEnchant(Enchantment.DURABILITY, 10,true);

		i.setItemMeta(meta);

		i2.setItemMeta(cmeta);


		Player p = (Player) e.getWhoClicked();


		p.sendMessage("test1");

            if (e.getCursor() == null) {
                return;
            }
            if (e.getCurrentItem() == null) {
                return;
            }
            if(!e.getCurrentItem().hasItemMeta()) {
            	return;
            }
            if(!e.getCursor().hasItemMeta()) {
            	return;
            }

            p.sendMessage("test2");



            if (e.getCurrentItem().getItemMeta().getDisplayName().equals(((ChatColor.translateAlternateColorCodes('&', "&b" +"Test sword")))) ) {




            	  if(e.getCursor().getItemMeta().getDisplayName().equals(((ChatColor.translateAlternateColorCodes('&', "&b" +"Chaos Shard")))) ){


            		  p.sendMessage("test3");
             		 if(e.getCurrentItem().getItemMeta().getLore().contains("Socket one Empty")) {

             			 e.setCursor(null);


            			 ItemStack itemToChange =  e.getCurrentItem();



            			 ItemMeta im=itemToChange.getItemMeta();


            			 List<String> loree = im.getLore();

            			 for(int i1 = 0; i1 < loree.size(); i1++) {
            				  if(loree.get(i1).contains("Socket one Empty")) {

            				       loree.set(i1, "Full");
            				  }
            				}
            				im.setLore(loree);



            				itemToChange.setItemMeta(im);

                     		// e.getCurrentItem().setAmount(0);


                     		 p.getInventory().addItem(itemToChange);


                     		 p.setItemOnCursor(new ItemStack(Material.AIR));
                    		 p.updateInventory();
                    		 p.sendMessage("tes4");



            		 }






            }

            }
            }





}