Plugin Code

package me.Dumfoundead99.LC;

import java.util.logging.Logger;

import org.bukkit.GameMode;
import org.bukkit.command.CommandSender;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.entity.HumanEntity;
import org.bukkit.entity.LivingEntity;
import org.bukkit.entity.Player;
import org.bukkit.event.Cancellable;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.block.BlockBreakEvent;
import org.bukkit.event.entity.EntityDamageByEntityEvent;
import org.bukkit.event.entity.EntityDeathEvent;
import org.bukkit.event.entity.PotionSplashEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.plugin.PluginDescriptionFile;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.potion.PotionEffectType;

public class LC<PlayerExtension> extends JavaPlugin{
    public static LC plugin;
    public final Logger logger = Logger.getLogger("Minecraft");

    @Override
    public void onDisable() {
        PluginDescriptionFile pdfFile = this.getDescription();
        this.logger.info(pdfFile.getName() + "is now disabled!");
    }

    @Override
    public void onEnable() {
        PluginDescriptionFile pdfFile = this.getDescription();
        this.logger.info(pdfFile.getName() + " Version " + pdfFile.getVersion() + "is now enabled!");

    }

    @EventHandler(priority=EventPriority.LOW)
      private void onBlockBreak(BlockBreakEvent event)
      {
        Player player = event.getPlayer();
        ItemStack item = player.getItemInHand();
        if (player.getItemInHand().getEnchantmentLevel(Enchantment.LOOT_BONUS_BLOCKS) > 11) {
          player.getInventory().remove(item);
        }
        if (player.getItemInHand().getEnchantmentLevel(Enchantment.DIG_SPEED) > 11) {
          player.getInventory().remove(item);
        }
        }
        @EventHandler(priority=EventPriority.LOW)
        private void onPotionSplashEvent(PotionSplashEvent e)
        {
          if ((e.getPotion().getShooter() instanceof Player))
          {
            Player niga = (Player)e.getPotion().getShooter();
            }
            CommandSender niga = null;
            if ((((HumanEntity) niga).getGameMode() == GameMode.CREATIVE) && (!niga.isOp()))
            {
              niga.sendMessage(getConfig().getString("isCreativeSplash").replaceAll("&", "§"));
              e.setCancelled(true);

              {
                niga.sendMessage(getConfig().getString("isGodSplash").replaceAll("&", "§"));
                e.setCancelled(true);
              }
            }
            if (((LivingEntity) niga).hasPotionEffect(PotionEffectType.INVISIBILITY))
            {
              niga.sendMessage(getConfig().getString("isInvisibleSplash").replaceAll("&", "§"));

              e.setCancelled(true);
            }
          }
        @SuppressWarnings({ "unchecked", "null" })
        @EventHandler(priority=EventPriority.LOW)
        private Object onEntityDamageByEntity(EntityDamageByEntityEvent event)
        {
              CommandSender attacker = null;
            if (((HumanEntity) attacker).getItemInHand() != null)
              {
                ItemStack item = ((HumanEntity) attacker).getItemInHand();
                GameMode gamemode = null;
                if ((gamemode == GameMode.CREATIVE))
                         ((CommandSender) attacker).sendMessage(getConfig().getString("isCreativePVP").replaceAll("&", "§"));

                  event.setCancelled(true);
                {
                  ((CommandSender) attacker).sendMessage(getConfig().getString("isFlyingPVP").replaceAll("&", "§"));

                  event.setCancelled(true);
                }
                if ((item.getEnchantmentLevel(Enchantment.DAMAGE_ALL) > 11) ||
                  (item.getEnchantmentLevel(Enchantment.KNOCKBACK) > 11))
                {
                  attacker.sendMessage(getConfig().getString("has1kPVP").replaceAll("&", "§"));
                  ((HumanEntity) attacker).getInventory().remove(item);
                  event.setCancelled(true);
                }
                    attacker.sendMessage(getConfig().getString("isGodPVP").replaceAll("&", "§"));

                    event.setCancelled(true);
                  }
            return attacker;
                }
                ItemStack[] arrayOfItemStack;
                Player defender;
                {
                if ((defender instanceof Player))
                {
                  int j = (arrayOfItemStack = ((Player)defender).getEquipment().getArmorContents()).length;
                  for (int i = 0; i < j; i++)
                  {
                    ItemStack is = arrayOfItemStack[i];
                    if ((is.getEnchantmentLevel(Enchantment.PROTECTION_ENVIRONMENTAL) > 5) ||
                      (is.getEnchantmentLevel(Enchantment.THORNS) > 5) ||
                      (is.getEnchantmentLevel(Enchantment.PROTECTION_FIRE) > 5)) {
                      ((Player)defender).getEquipment().setArmorContents(null);
                    }
                  }
                }
                Object attacker = null;
                @SuppressWarnings("null")
                int j = (arrayOfItemStack = ((LivingEntity) attacker).getEquipment().getArmorContents()).length;
                for (int i = 0; i < j; i++)
                {
                  ItemStack is = arrayOfItemStack[i];
                  if ((is.getEnchantmentLevel(Enchantment.PROTECTION_ENVIRONMENTAL) > 5) ||
                    (is.getEnchantmentLevel(Enchantment.THORNS) > 5) ||
                    (is.getEnchantmentLevel(Enchantment.PROTECTION_FIRE) > 5)) {
                    ((HumanEntity) attacker).getInventory().setArmorContents(null);
                  }
                {
                    ((CommandSender) attacker).sendMessage(getConfig().getString("isInvisiblePVP").replaceAll("&", "§"));

                    Cancellable event = null;
                    event.setCancelled(true);
                  }
          {

          }
        }
     }
}