starten/stoppen eines shedulers funktioniert nicht...

[xS1L3nTx]

Hallo Community,
Ich schreibe ein kleines Quizplugin in dem man mittels einem befehl einen sheduler starten und stoppen können soll, aber jedesmal wenn ich den befehl eingebe bekomme ich nur ein "An internal error Occured...":

Spoiler

org.bukkit.command.CommandException: Unhandled exception executing command 'xqui
zmode' in plugin xQuiz v1.0
    	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:42)
    	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:16
8)
    	at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:4
92)
    	at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.
java:880)
    	at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:826)

    	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:808)
    	at net.minecraft.server.Packet3Chat.handle(Packet3Chat.java:44)
    	at net.minecraft.server.NetworkManager.b(NetworkManager.java:276)
    	at net.minecraft.server.NetServerHandler.d(NetServerHandler.java:109)
    	at net.minecraft.server.ServerConnection.b(SourceFile:35)
    	at net.minecraft.server.DedicatedServerConnection.b(SourceFile:30)
    	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:578)
    	at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:213)
    	at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:474)
    	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:406)
    	at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    	at de.xS1L3nTx.xQuiz.xQuizCommands.onCommand(xQuizCommands.java:24)
    	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40)
    	... 15 more
14:35:46 [INFORMATION] Player929 issued server command: /xquizmode stop
14:35:46 [SCHWERWIEGEND] null
org.bukkit.command.CommandException: Unhandled exception executing command 'xqui
zmode' in plugin xQuiz v1.0
    	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:42)
    	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:16
8)
    	at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:4
92)
    	at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.
java:880)
    	at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:826)

    	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:808)
    	at net.minecraft.server.Packet3Chat.handle(Packet3Chat.java:44)
    	at net.minecraft.server.NetworkManager.b(NetworkManager.java:276)
    	at net.minecraft.server.NetServerHandler.d(NetServerHandler.java:109)
    	at net.minecraft.server.ServerConnection.b(SourceFile:35)
    	at net.minecraft.server.DedicatedServerConnection.b(SourceFile:30)
    	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:578)
    	at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:213)
    	at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:474)
    	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:406)
    	at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    	at de.xS1L3nTx.xQuiz.xQuizCommands.onCommand(xQuizCommands.java:30)
    	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40)
    	... 15 more

Ich habe 3 Klassen:

Spoiler

package de.xS1L3nTx.xQuiz;

import org.bukkit.plugin.java.JavaPlugin;

public class xQuiz extends JavaPlugin {
	
	public xQuizCommands xquizCommands;
	
	public void onEnable() {
		manageStuff();
		System.out.println("[xQuiz] Das Plugin wurde gestartet");
	}

	public void onDisable() {
		
		System.out.println("[xQuiz] Das Plugin wurde deaktiviert");
	}
	
	public void manageStuff(){
		xquizCommands = new xQuizCommands();
		getCommand("xQuizmode").setExecutor(xquizCommands);
	}
}

Spoiler

package de.xS1L3nTx.xQuiz;

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


public class xQuizCommands implements CommandExecutor{
	
	xQuiz plugin = new xQuiz();
	xQuizRunnable rm = new xQuizRunnable(plugin);
	
	public boolean onCommand(CommandSender sender,Command cmd, String CommandLabel, String args[]){ //reagiert bei commands
		
		if (sender instanceof Player){
			Player Spieler = (Player)sender;
			if (cmd.getName().equalsIgnoreCase("xQuizmode")){
				if (args.length == 1){
					if(args[0].equalsIgnoreCase("start")){
						Spieler.sendMessage(ChatColor.GREEN + "xQuiz wurde gestartet!");

						plugin.getServer().getScheduler().scheduleAsyncRepeatingTask(plugin, rm, 1*20, 5*20);						
						
						return true;
					}
					if(args[0].equalsIgnoreCase("stop")){
						Spieler.sendMessage(ChatColor.RED + "xQuiz wurde angehalten!");
						plugin.getServer().getScheduler().cancelAllTasks();						
						return true;
					}
				}
			}
		} 
		return false;
	}
}

Spoiler

package de.xS1L3nTx.xQuiz;

public class xQuizRunnable implements Runnable {
	public xQuiz plugin;
	public xQuizRunnable(xQuiz instance) {
	plugin = instance;
	}
	@Override
	public void run() {
		plugin.getServer().broadcastMessage("Works!");
	}
}

Ich habe schon so einiges rumprobiert, aber irgendwie will es einfach nicht gehen :/

 

[Let's Mine]

Warum erzeugst du eine neue Instanz der Main Klasse? Übergib die im Constructor. Außerdem würde ich einfach:

						plugin.getServer().getScheduler().scheduleAsyncRepeatingTask(plugin, new xQuizRunnable, 1*20, 5*20);

 

[xS1L3nTx]

Ich habs hinbekommen! Danke für den Tipp!