Jak to naprawić ?

Jak naprawić takie coś?

Chodzi o

 getCommand("core").setExecutor(new me.messie.hccraft.all.Commands.CoreCommand());

Class: Main

	public void registerCommands()
	  {
	    getCommand("core").setExecutor(new me.messie.hccraft.all.Commands.CoreCommand());
	  }

Class: CoreCommand

package me.messie.hccraft.all.Commands;

import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.plugin.PluginDescriptionFile;
import org.bukkit.plugin.java.JavaPlugin;

import me.messie.hccraft.all.Utils.ChatUtil;	

public class CoreCommand extends JavaPlugin {
	
	public CoreCommand() {}
	
	@Override
	 public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args)
	  {
	    if (args.length == 0) {
			PluginDescriptionFile pdf = getDescription();
		    ChatUtil.sendM(sender, "&b| Aktualna wersja pluginu: &e[v" + pdf.getVersion() + "]");
		}
		
	return false;
	}
}