コンストラクタのコマンド（）は未定義です - Java/SpigotMC

Question

このような他の質問があることは知っていますが、このケースには完全に役立つものはありません。

そこで、基本的

getCommand("minealchemy").setExecutor(new Commands());

を言うライン上で私はこのエラーを取得する：

The constructor Commands() is undefined

任意のヘルプ？私はコマンド...コマンド（ヌル）のために（）で「ヌル」を入れると...それから私はNullPointerExceptionエラーを取得...ここ

は私のクラスのすべてです：

メインクラス：

package me.zachbears27; 

import org.bukkit.event.Listener; 
import org.bukkit.plugin.java.JavaPlugin; 

import me.zachbears27.utils.Commands; 

public class Main extends JavaPlugin implements Listener { 

    @Override 
    public void onDisable() { 
    } 

    @Override 
    public void onEnable() { 
     getServer().getPluginManager().registerEvents(this, this); 
     registerConfig(); 

     getCommand("minealchemy").setExecutor(new Commands()); 
    } 

    public void registerConfig() { 
     saveDefaultConfig(); 
    } 

} 

コマンドクラス：

package me.zachbears27.utils; 

import java.io.File; 
import org.bukkit.command.Command; 
import org.bukkit.command.CommandExecutor; 
import org.bukkit.command.CommandSender; 
import org.bukkit.configuration.file.FileConfiguration; 
import org.bukkit.configuration.file.YamlConfiguration; 
import org.bukkit.entity.Player; 

import me.zachbears27.utils.Methods; 
import net.md_5.bungee.api.ChatColor; 

public class Commands implements CommandExecutor { 

    private final Methods methods; 
    public Commands(Methods methods) { 
     this.methods = methods; 
    } 

     public boolean onCommand(CommandSender sender, Command label, String cmd, String[] args) { 

      Player p = (Player) sender; 

      if (cmd.equalsIgnoreCase("minealchemy")) { 
       if(args.length > 0) { 
        //Get File 
        File file = methods.getPlayerFile(p.getUniqueId()); 
        FileConfiguration fileSettings = YamlConfiguration.loadConfiguration(file); 

        //Make Sure It's False 
        fileSettings.set("Enabled", false); 

        //Save Inventory 
        methods.savePlayerInv(p.getUniqueId(), p.getInventory().getContents()); 

        //Clear It 
        p.getInventory().clear(); 

        //Put In God Mode 
        p.setInvulnerable(true); 

        //Open Inventory 
        p.openWorkbench(p.getLocation(), true); 
       } else { 
        p.sendMessage(ChatColor.RED + "Incorrect Arguments... Please use \"start\" or \"list\"."); 
       } 
      } 

      return true; 
     } 
} 

のメソッドクラス：

package me.zachbears27.utils; 

import java.io.File; 
import java.util.ArrayList; 
import java.util.UUID; 

import org.bukkit.configuration.file.FileConfiguration; 
import org.bukkit.configuration.file.YamlConfiguration; 
import org.bukkit.inventory.ItemStack; 

import me.zachbears27.Main; 
import net.md_5.bungee.api.ChatColor; 

public class Methods { 


private final Main plugin; 
public Methods(Main plugin) { 
    this.plugin = plugin; 
} 


    public ArrayList<String> getAllItems() { 
     ArrayList<String> allItems = new ArrayList<String>(); 
     //Basics 
     String Air = ChatColor.GREEN + "Air" + ChatColor.RESET; 
     String Earth = ChatColor.GREEN + "Earth" + ChatColor.RESET; 
     String Fire = ChatColor.GREEN + "Fire" + ChatColor.RESET; 
     String Metal = ChatColor.GREEN + "Metal" + ChatColor.RESET; 
     String Water = ChatColor.GREEN + "Water" + ChatColor.RESET; 
     String Motion = ChatColor.GREEN + "Motion" + ChatColor.RESET; 
     String Big = ChatColor.GREEN + "Big" + ChatColor.RESET; 
     String Time = ChatColor.GREEN + "Time" + ChatColor.RESET; 
     String Small = ChatColor.GREEN + "Small" + ChatColor.RESET; 

     allItems.add(Air); 
     allItems.add(Earth); 
     allItems.add(Fire); 
     allItems.add(Metal); 
     allItems.add(Water); 
     allItems.add(Motion); 
     allItems.add(Big); 
     allItems.add(Time); 
     allItems.add(Small); 

     //Animals 
     String Cat = ChatColor.GOLD + "Cat" + ChatColor.RESET; 

     allItems.add(Cat); 

     return allItems; 
    } 

    public String addItems(String item1, String item2) { 
     String returnStatement = ChatColor.RED + "X"; 
     if(item1.equals("Air") && item2.equals("Fire")) { 
      returnStatement = "Mist"; 
     } 
     return returnStatement; 
    } 

    public File getPlayerFile(UUID playerUUID) { 

     //Creates The Player File 
     File playerFile = new File (plugin.getDataFolder() + File.separator + "Player Data", playerUUID + ".yml"); 
     return playerFile; 
    } 

    public void savePlayerInv(UUID playerUUID, ItemStack[] inv) { 

     File playerFile = getPlayerFile(playerUUID); 
     FileConfiguration playerData = YamlConfiguration.loadConfiguration(playerFile); 
     playerData.set("SavedInventory", inv); 
    } 
} 

Answer 1

変更

にonEnable（）関数で .setExecutor(new Commands())

.setExecutor(new Commands(new Methods(this)))