Spam w konsoli

[AsiaZPodlasia]

Siema, mam taki spam w konsoli przy włączaniu serwera:

[17:13:11 ERROR]: Could not load 'plugins\kosz.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.IllegalArgumentException: Plugin already initialized!
        at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:133) ~[craftbukkit.jar:git-Bukkit-18fbb24]
        at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:328) ~[craftbukkit.jar:git-Bukkit-18fbb24]
        at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:251) [craftbukkit.jar:git-Bukkit-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugins(CraftServer.java:289) [craftbukkit.jar:git-Bukkit-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.CraftServer.<init>(CraftServer.java:251) [craftbukkit.jar:git-Bukkit-18fbb24]
        at net.minecraft.server.v1_8_R3.PlayerList.<init>(PlayerList.java:69) [craftbukkit.jar:git-Bukkit-18fbb24]
        at net.minecraft.server.v1_8_R3.DedicatedPlayerList.<init>(SourceFile:14) [craftbukkit.jar:git-Bukkit-18fbb24]
        at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:179) [craftbukkit.jar:git-Bukkit-18fbb24]
        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:504) [craftbukkit.jar:git-Bukkit-18fbb24]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_211]
Caused by: java.lang.IllegalArgumentException: Plugin already initialized!
        at org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader.java:98) ~[craftbukkit.jar:git-Bukkit-18fbb24]
        at org.bukkit.plugin.java.JavaPlugin.<init>(JavaPlugin.java:66) ~[craftbukkit.jar:git-Bukkit-18fbb24]
        at com.gmail.ziemnianioczek.Main.<init>(Main.java:24) ~[?:?]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_211]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_211]
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_211]
        at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.8.0_211]
        at java.lang.Class.newInstance(Unknown Source) ~[?:1.8.0_211]
        at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:52) ~[craftbukkit.jar:git-Bukkit-18fbb24]
        at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:129) ~[craftbukkit.jar:git-Bukkit-18fbb24]
        ... 9 more
Caused by: java.lang.IllegalStateException: Initial initialization
        at org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader.java:101) ~[craftbukkit.jar:git-Bukkit-18fbb24]
        at org.bukkit.plugin.java.JavaPlugin.<init>(JavaPlugin.java:66) ~[craftbukkit.jar:git-Bukkit-18fbb24]
        at com.gmail.ziemnianioczek.Main.<init>(Main.java:24) ~[?:?]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_211]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_211]
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_211]
        at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.8.0_211]
        at java.lang.Class.newInstance(Unknown Source) ~[?:1.8.0_211]
        at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:52) ~[craftbukkit.jar:git-Bukkit-18fbb24]
        at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:129) ~[craftbukkit.jar:git-Bukkit-18fbb24]
        ... 9 more

Nie wiem czym jest to wywołane, tutaj są moje 2 jedyne klasy (bo to tylko plugin na smietnik xd) :

Main:

package com.gmail.ziemnianioczek;

import org.bukkit.plugin.java.JavaPlugin;

public class Main extends JavaPlugin{

	public void onEnable() {
		getCommand("kosz").setExecutor(new kosz());
		super.onEnable();
	}
}

kosz:

package com.gmail.ziemnianioczek;


import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.inventory.Inventory;

public class kosz implements CommandExecutor {

	@Override
	public boolean onCommand(CommandSender sender, Command cmd, String arg2, String[] arg3) {
		if(!(sender instanceof Player)) {
			sender.sendMessage("Smietnik jest tylko dla graczy!");
			return true;
		}
		Player p = (Player) sender;
		Inventory kosz = Bukkit.createInventory(null, 54, ChatColor.DARK_RED + "Kosz");
		p.openInventory(kosz);
		p.sendMessage(ChatColor.RED + "Administracja nie odpowiada za stracone w koszu itemy!");
		return true;
	}

}

Oczywiście się otwiera śmietnik, lecz ten spam denerwuje

[Korsacz]

Większość spamu zajmuje Error pluginu. Nie można wczytać jakiegoś pluginu "kosz.jar”, który znajduje się w folderze "plugins”. Masz tutaj jakieś błędy z tym pluginem m.in z importem.