Bukkit API Events don´t Work

package com.google.topicslp.ploger;

import java.text.SimpleDateFormat;

import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.BlockBreakEvent;
import org.bukkit.event.block.BlockPlaceEvent;
import org.bukkit.event.player.AsyncPlayerChatEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class plog extends JavaPlugin implements Listener{

    public void onEnable(){
        this.getServer().getPluginManager().registerEvents(this, this);
        System.out.println("[PLoger] wurde geladen !");
        System.out.println("[PLoger] Speichert daten: /plugins/PLoger");
    }

    @EventHandler
    public void breaker(BlockBreakEvent e){
        System.out.println("DE");
        Player p = e.getPlayer();
        String b = e.getBlock().getType().name();
        String w = e.getBlock().getWorld().getName();
        int x = e.getBlock().getX();
        int y = e.getBlock().getY();
        int z = e.getBlock().getZ();
        SimpleDateFormat t =  new SimpleDateFormat("[dd.MMMM] [HH:mm:ss]");
        String bbe = t +" Breaked: "+ p +" "+ b +" "+w+" "+ x+" " +y+" " + z;
        System.out.println(bbe);


    }
    @EventHandler
    public void place(BlockPlaceEvent e){
        System.out.println("DE");
        Player p = e.getPlayer();
        String b = e.getBlock().getType().name();
        String w = e.getBlock().getWorld().getName();
        int x = e.getBlock().getX();
        int y = e.getBlock().getY();
        int z = e.getBlock().getZ();
        SimpleDateFormat t =  new SimpleDateFormat("[dd.MMMM] [HH:mm:ss]");
        String bpe = t +" Placed: "+ p +" "+ b +" "+w+" "+ x+" " +y+" " + z;
        System.out.println(bpe);
    }
    @EventHandler
    public void cmd(AsyncPlayerChatEvent e){
        System.out.println("DE");
        Player p = e.getPlayer();
        String w = p.getLocation().getWorld().getName();
        double x = p.getLocation().getX();
        double y = p.getLocation().getY();
        double z = p.getLocation().getZ();
        String msg = e.getMessage();
        SimpleDateFormat t =  new SimpleDateFormat("[dd.MMMM] [HH:mm:ss]");
        String pce = t +" Chated: "+ p +" "+w+" "+ x+" " +y+" " + z+ " MSG: "+ msg;
        System.out.println(pce);
    }

}