EventHandlers does nothing !

Code:java

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.logging.Logger;
 
import org.bukkit.command.Command;
import org.bukkit.ChatColor;
import org.bukkit.GameMode;
import org.bukkit.Material;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.Listener;
import org.bukkit.event.inventory.InventoryClickEvent;
import org.bukkit.event.inventory.InventoryDragEvent;
import org.bukkit.event.player.PlayerDropItemEvent;
import org.bukkit.event.player.PlayerMoveEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.PlayerInventory;
import org.bukkit.plugin.java.JavaPlugin;
public class Main extends JavaPlugin implements Listener
{
 
    private Logger logger = getLogger();
    private final HashMap<Player,SimpleInventorySaver> inventorySaver = new HashMap<Player,SimpleInventorySaver>();
 
    @Override
    public void onEnable()
    {
 
        logger.info("[AdvPVP] Le plugin AdvancedPVP est charge");
        getConfig().options().copyDefaults(true);
        saveConfig();
        getServer().getPluginManager().registerEvents(this, this);
    }
 
 
 
 
 
 
 
 
    List<String> toggled = new ArrayList<String>();
    public boolean onCommand(CommandSender sender, Command command, String commandLabel, String[] args)    {
 
                  [Some Code...]
    }
 
    @EventHandler
    public void onInventoryClick(InventoryClickEvent event) {
        Player player = (Player) event.getWhoClicked();
        if (toggled.contains(player.getName())){
            event.setCancelled(true);
        }
    }
    @EventHandler
    public void onInventoryDrag(InventoryDragEvent event){
        Player player = (Player) event.getWhoClicked();
        if (toggled.contains(player.getName())){
            event.setCancelled(true);
        }
    }
    @EventHandler
    public void onPlayerDropItem(PlayerDropItemEvent event){
        Player player = (Player) event.getPlayer();
        if (toggled.contains(player.getName())){
            event.setCancelled(true);
        }
    }
 
    @EventHandler (priority = EventPriority.HIGHEST)
    public void onPlayerMove(PlayerMoveEvent event){
        event.setCancelled(true);
    }
 
    @Override
    public void onDisable()
    {
 
        logger.info("[AdvPVP] Le plugin AdvancedPVP s'eteint... !");
 
    }
}

Ok my problem is: The eventhandlers doesn't work (the onPlayerMove too)
i don't understand why, help ?

 

Based on everything in the provided code it should be working. Can you show us the stack trace of the errors that you are getting, if any?