Player.getInventory.setItem does not work on a specific slot

Hey guys,

I have a problem:
As already mentioned in the title, the 5th slot in my inventory cannot be set in my code. I use the whole thing in connection with a PlayerChangeWorld listener.

I don't know why but it's only the 5th slot that doesn't work. The remaining slots work. I also don't get any errors or logs.

Here is the Code from the listener class:
(Inventory.setitem in Line 45)

Code:Java

 
package de.max.maxgameplugin.listeners;
import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerChangedWorldEvent;
import org.bukkit.event.player.PlayerQuitEvent;
import org.bukkit.inventory.ItemStack;
import de.max.maxgameplugin.countdowns.LobbyCountdown;
import de.max.maxgameplugin.gamestates.LobbyState;
import de.max.maxgameplugin.main.Main;
import de.max.maxgameplugin.util.ConfigLocationUtil;
import de.max.maxgameplugin.util.ItemBuilder;
import de.max.maxgameplugin.voting.Voting;
public class PlayerLobbyConnectionListener implements Listener{
 
 public static final String VOTING_ITEM_NAME = "§6§lMap-Voting";
 
 private Main plugin;
 private ItemStack voteItem;
 
 public PlayerLobbyConnectionListener(Main plugin) {
 this.plugin = plugin;
 voteItem = new ItemBuilder(Material.NETHER_STAR).setDisplayName(VOTING_ITEM_NAME).build();
 }
 
 @EventHandler
 public void handlePlayerChangeWorld(PlayerChangedWorldEvent event) {
 FileConfiguration config = Main.getPlugin().getConfig();
 World configWorld = Bukkit.getWorld(config.getString("GameLobby.World"));
 if (config.getString("GameLobby.World") == null) return;
 if(event.getPlayer().getWorld() == configWorld) {
 if(!(plugin.getGameStateManager().getCurrentGameState() instanceof LobbyState)) return;
 Player player = event.getPlayer();
 plugin.getPlayers().add(player);
 for (Player p : event.getPlayer().getWorld().getPlayers()) {
 p.sendMessage(Main.PREFIX + "§a" + player.getDisplayName() + " §7ist dem Spiel beigetreten. [" + plugin.getPlayers().size() + "/" + LobbyState.MAX_PLAYERS + "]");
 }
 
 player.getInventory().clear();
 player.getInventory().setItem(4, voteItem);
 player.sendMessage(Main.PREFIX + "Item angeblich gesetzt");
 
 ConfigLocationUtil locationUtil = new ConfigLocationUtil(plugin, "GameLobby");
 if(locationUtil.loadLocation() != null) {
 player.teleport(locationUtil.loadLocation());
 } else {
 Bukkit.getConsoleSender().sendMessage(Main.PREFIX + "§cDie Lobby-Location wurde noch nicht gesetzt!");
 }
 
 LobbyState lobbyState = (LobbyState)plugin.getGameStateManager().getCurrentGameState();
 LobbyCountdown countdown = lobbyState.getCountdown();
 if(plugin.getPlayers().size() >= LobbyState.MIN_PLAYERS) {
 if(!countdown.isRunning()) {
 countdown.stopIdle();
 countdown.start();
 }
 }
 } else if (event.getFrom() == configWorld) {
 if(!(plugin.getGameStateManager().getCurrentGameState() instanceof LobbyState)) return;
 Player player = event.getPlayer();
 plugin.getPlayers().remove(player);
 for (Player p : event.getFrom().getPlayers()) {
 p.sendMessage(Main.PREFIX + "§c" + player.getDisplayName() + " §7hat das Spiel verlassen. [" + plugin.getPlayers().size() + "/" + LobbyState.MAX_PLAYERS + "]");
 }
 
 LobbyState lobbyState = (LobbyState)plugin.getGameStateManager().getCurrentGameState();
 LobbyCountdown countdown = lobbyState.getCountdown();
 if(plugin.getPlayers().size() < LobbyState.MIN_PLAYERS) {
 if(countdown.isRunning()) {
 countdown.stop();
 countdown.startIdle();
 }
 }
 
 Voting voting = plugin.getVoting();
 if(voting.getPlayerVotes().containsKey(player.getName())) {
 voting.getVotingMaps()[voting.getPlayerVotes().get(player.getName())].removeVote();
 voting.initVotingInventory();
 }
 }
 }
 
 @EventHandler
 public void handlePlayerQuit(PlayerQuitEvent event) {
 FileConfiguration config = Main.getPlugin().getConfig();
 World configWorld = Bukkit.getWorld(config.getString("MaxPlugin.Game.World"));
 Player player = event.getPlayer();
 if (config.getString("MaxPlugin.Game.World") == null) return;
 if(player.getWorld() == configWorld) {
 if(!(plugin.getGameStateManager().getCurrentGameState() instanceof LobbyState)) return;
 plugin.getPlayers().remove(player);
 for (Player p : configWorld.getPlayers()) {
 p.sendMessage(Main.PREFIX + "§c" + player.getDisplayName() + " §7hat das Spiel verlassen. [" + plugin.getPlayers().size() + "/" + LobbyState.MAX_PLAYERS + "]");
 }
 
 LobbyState lobbyState = (LobbyState)plugin.getGameStateManager().getCurrentGameState();
 LobbyCountdown countdown = lobbyState.getCountdown();
 if(plugin.getPlayers().size() < LobbyState.MIN_PLAYERS) {
 if(countdown.isRunning()) {
 countdown.stop();
 countdown.startIdle();
 }
 }
 
 Voting voting = plugin.getVoting();
 if(voting.getPlayerVotes().containsKey(player.getName())) {
 voting.getVotingMaps()[voting.getPlayerVotes().get(player.getName())].removeVote();
 voting.initVotingInventory();
 }
 }
 
 }
 
}
 

I hope someone can help me with this error.

Thanks in advance for all the helpers !

 

@DevMax_Plg Have you tried delaying it by 1 tick?

 

Nope i dont know how to delay this single task.
does it work with a new runnable?

I also tried updating the inventory of the player but it doesnt work

 

@DevMax_Plg
Try using the following:

Code:java

 
 new BukkitRunnable(){
    public void run(){
        //setItem in here
    }
 }.runTaskLater( MAIN_CLASS, 1);

where MAIN_CLASS is the main class's instance.