Could not pass event InventoryClickEvent

Discussion in 'Plugin Development' started by plisov, Jul 23, 2015.

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  1. Offline

    plisov

    I just recently created a particles plugin where you open a gui and click a particle you want to use. Everything works fine. But in the console it keeps giving me this error.
    Error
    Code:
    [13:43:38 ERROR]: Could not pass event InventoryClickEvent to Points v1.0
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:305) ~[spigot.jar:git-Spigot-9a88a38-e2c4f20]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav
a:62) ~[spigot.jar:git-Spigot-9a88a38-e2c4f20]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.j
ava:502) [spigot.jar:git-Spigot-9a88a38-e2c4f20]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j
ava:487) [spigot.jar:git-Spigot-9a88a38-e2c4f20]
        at net.minecraft.server.v1_8_R1.PlayerConnection.a(PlayerConnection.java
:1554) [spigot.jar:git-Spigot-9a88a38-e2c4f20]
        at net.minecraft.server.v1_8_R1.PacketPlayInWindowClick.a(SourceFile:31)
 [spigot.jar:git-Spigot-9a88a38-e2c4f20]
        at net.minecraft.server.v1_8_R1.PacketPlayInWindowClick.a(SourceFile:9)
[spigot.jar:git-Spigot-9a88a38-e2c4f20]
        at net.minecraft.server.v1_8_R1.PacketHandleTask.run(SourceFile:13) [spi
got.jar:git-Spigot-9a88a38-e2c4f20]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [
?:1.8.0_51]
        at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_51]
        at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:6
83) [spigot.jar:git-Spigot-9a88a38-e2c4f20]
        at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:3
16) [spigot.jar:git-Spigot-9a88a38-e2c4f20]
        at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:6
23) [spigot.jar:git-Spigot-9a88a38-e2c4f20]
        at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java
:526) [spigot.jar:git-Spigot-9a88a38-e2c4f20]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_51]
Caused by: java.lang.NullPointerException
        at me.plisov.inv.GUI.onInventoryClick(GUI.java:203) ~[?:?]
        at sun.reflect.GeneratedMethodAccessor610.invoke(Unknown Source) ~[?:?]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1
.8.0_51]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_51]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:301) ~[spigot.jar:git-Spigot-9a88a38-e2c4f20]
        ... 14 more
    I cant figure out why its not working. Here is the class.
    Code:
    package me.plisov.inv;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import me.plisov.Enable;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.DyeColor;
import org.bukkit.Effect;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.inventory.InventoryClickEvent;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.plugin.Plugin;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.scheduler.BukkitRunnable;

public class GUI extends BukkitRunnable implements Listener {

    static List<String> PlayersThatHaveParticles=new ArrayList<String>();
   
    private Enable plugin;
   
   
//    private static Player player;
//   
//   
//    public Player getPlayer() {
//        return player;
//    }
//
//    public void setPlayer(Player player) {
//        this.player = player;
//    }

    public GUI (Enable plugin) {
        this.plugin = plugin;
        //initializeStuff();
    }
   
    /*public GUI (Enable plugin, Player player) {
        this.plugin = plugin;
        initializeStuff();
        this.player = player;
    }*/
   
    //private void initializeStuff()
   
   
    public Inventory getInventory() {
        return inventory;
    }

    private static ItemStack emerald, emeraldstop, fire, firestop, red, green, hearts, heartstop, smoke, smokestop, more;
   
    private static Inventory inventory = Bukkit.createInventory(, 54, ChatColor.RED + "Particles GUI" + ChatColor.GREEN);
   
    static
    {
//        if (player != null) 
//        {
//            Double playerBalance = Main.getBalance(player.getName());
//            player.closeInventory();
//            inventory = Bukkit.createInventory(null, 54, ChatColor.DARK_RED + "Particles" + ChatColor.GREEN + " P: " + ChatColor.RED + playerBalance.toString());
//        }
        emerald = item1(ChatColor.RED + "Emerald");
        emeraldstop = item3(ChatColor.RED + "Stop Emerald");
        fire = item2(ChatColor.RED + "Fire");
        firestop = item4(ChatColor.RED + "Stop Fire");
        red = red(ChatColor.RED + "Off");
        green = green(ChatColor.RED + "On");
        hearts = hearts(ChatColor.RED + "Hearts");
        heartstop = heartstop(ChatColor.RED + "Stop Hearts");
        smoke = smoke(ChatColor.RED + "Smoke");
        smokestop = smokestop(ChatColor.RED + "Stop Smoke");
        more = more(ChatColor.GREEN + "More coming soon!");
       
        inventory.setItem(12, emerald);
        inventory.setItem(14, emeraldstop);
        inventory.setItem(21, fire);
        inventory.setItem(23, firestop);
        inventory.setItem(3, green);
        inventory.setItem(5, red);
        inventory.setItem(30, hearts);
        inventory.setItem(32, heartstop);
        inventory.setItem(39, smoke);
        inventory.setItem(41, smokestop);
       
    }
   
   
    private static ItemStack more(String name){
        ItemStack i = new ItemStack(new ItemStack(Material.IRON_FENCE));
        ItemMeta im = i.getItemMeta();
        im.setDisplayName(name);
        im.setLore(Arrays.asList("§aTurn off smoke particles!"));
        i.setItemMeta(im);
        return i;
    }
   
    private static ItemStack smokestop(String name){
        ItemStack i = new ItemStack(new ItemStack(Material.COAL));
        ItemMeta im = i.getItemMeta();
        im.setDisplayName(name);
        im.setLore(Arrays.asList("§aTurn off smoke particles!"));
        i.setItemMeta(im);
        return i;
    }
   
    private static ItemStack smoke(String name){
        ItemStack i = new ItemStack(new ItemStack(Material.COAL));
        ItemMeta im = i.getItemMeta();
        im.setDisplayName(name);
        im.setLore(Arrays.asList("§aTurn on a 'smokey' particle effect!"));
        i.setItemMeta(im);
        return i;
    }
   
    @SuppressWarnings("deprecation")
    private static ItemStack green(String name){
        ItemStack i = new ItemStack(new ItemStack(Material.WOOL, 1, DyeColor.LIME.getData()));
        ItemMeta im = i.getItemMeta();
        im.setDisplayName(name);
        im.setLore(Arrays.asList("§aTurn on"));
        i.setItemMeta(im);
        return i;
    }
   
    private static ItemStack red(String name){
        ItemStack i = new ItemStack(new ItemStack(new ItemStack(Material.BARRIER)));
        ItemMeta im = i.getItemMeta();
        im.setDisplayName(name);
        im.setLore(Arrays.asList("§aTurn all particles off!"));
        i.setItemMeta(im);
        return i;
    }
   
    private static ItemStack item1(String name){
        ItemStack i = new ItemStack(new ItemStack(Material.EMERALD, 1));
        ItemMeta im = i.getItemMeta();
        im.setDisplayName(name);
        im.setLore(Arrays.asList("§aGet an emerald particle effect!"));
       
        i.setItemMeta(im);
        return i;
    }
   
    private static ItemStack item3(String name){
        ItemStack i = new ItemStack(new ItemStack(Material.EMERALD, 1));
        ItemMeta im = i.getItemMeta();
        im.setDisplayName(name);
        im.setLore(Arrays.asList("§aStop the emerald particle effect!"));
        i.setItemMeta(im);
        return i;
    }
   
    private static ItemStack item2(String name){
        ItemStack i = new ItemStack(new ItemStack(Material.FIREBALL, 1));
        ItemMeta im = i.getItemMeta();
        im.setDisplayName(name);
        im.setLore(Arrays.asList("§aGet a fire particle effect!"));
        i.setItemMeta(im);
        return i;
    }
   
    private static ItemStack item4(String name){
        ItemStack i = new ItemStack(new ItemStack(Material.FIREBALL, 1));
        ItemMeta im = i.getItemMeta();
        im.setDisplayName(name);
        im.setLore(Arrays.asList("§aStop the flame effect!"));
        i.setItemMeta(im);
        return i;
    }
   
    private static ItemStack hearts(String name){
        ItemStack i = new ItemStack(new ItemStack(Material.REDSTONE));
        ItemMeta im = i.getItemMeta();
        im.setDisplayName(name);
        im.setLore(Arrays.asList("§aYou are in love!"));
        i.setItemMeta(im);
        return i;
    }
   
    private static ItemStack heartstop(String name){
        ItemStack i = new ItemStack(new ItemStack(Material.REDSTONE));
        ItemMeta im = i.getItemMeta();
        im.setDisplayName(name);
        im.setLore(Arrays.asList("§aTurn heart particles off!"));
        i.setItemMeta(im);
        return i;
    }
    @EventHandler
    public void onInventoryClick(InventoryClickEvent e) {
        Player player = (Player) e.getWhoClicked();
        if (e.getCurrentItem().getItemMeta().getDisplayName().contains("Smoke")) {
            if (!e.getInventory().getName().equalsIgnoreCase(inventory.getName())) return;
            if (e.getCurrentItem().getItemMeta() == null) return;
                e.setCancelled(true);
                Location loc = player.getLocation();
                if (!PlayersThatHaveParticles.contains(player.getName()))
                   PlayersThatHaveParticles.add(player.getName());
                Bukkit.getServer().getScheduler().scheduleSyncRepeatingTask(plugin, new Runnable() {

                    @Override
                    public void run() {
                        for (Player p : Bukkit.getServer().getOnlinePlayers()) {
                            loc.getWorld().playEffect(player.getLocation().add(0, 0, 0), Effect.SMOKE, 50000);
                            }
                        }
                       
                    }, 20, 1);
                e.getWhoClicked().closeInventory();
        }
       
        if (e.getCurrentItem().getItemMeta().getDisplayName().contains("Stop Smoke")) {               
                new BukkitRunnable() {
                   public void run() {
                      if (!e.getInventory().getName().equalsIgnoreCase(inventory.getName())) return;
                        if (e.getCurrentItem().getItemMeta() == null) return;
                            Location loc = player.getLocation();
                            PlayersThatHaveParticles.remove(player.getName());
                            e.getWhoClicked().closeInventory();
                          cancel();
                       }
                   }.runTaskTimer(Enable.instance, 0, 20);
                    //if (!e.getInventory().getName().equalsIgnoreCase(inventory.getName())) return;
                    //if (e.getCurrentItem().getItemMeta() == null) return;
                        //e.setCancelled(true);
                        //Location loc = player.getLocation();
                        //PlayersThatHaveParticles.remove(player.getName());
                        //Bukkit.getScheduler().cancelAllTasks();
                        //e.getWhoClicked().closeInventory();
        }
       
        if (e.getCurrentItem().getItemMeta().getDisplayName().contains("Off")) {
            if (!e.getInventory().getName().equalsIgnoreCase(inventory.getName())) return;
            if (e.getCurrentItem().getItemMeta() == null) return;
                e.setCancelled(true);
                Location loc = player.getLocation();
                PlayersThatHaveParticles.remove(player.getName());
                Bukkit.getScheduler().cancelAllTasks();
                e.getWhoClicked().closeInventory();
        }
       
        if (e.getCurrentItem().getItemMeta().getDisplayName().contains("On")) {
            if (!e.getInventory().getName().equalsIgnoreCase(inventory.getName())) return;
            if (e.getCurrentItem().getItemMeta() == null) return;
                e.setCancelled(true);
                Location loc = player.getLocation();
                e.getWhoClicked().closeInventory();
        }
       
        if (!e.getInventory().getName().equalsIgnoreCase(inventory.getName())) return;
        if (e.getCurrentItem().getItemMeta() == null) return;
        if (e.getCurrentItem().getItemMeta().getDisplayName().contains("Emerald")) {
            e.setCancelled(true);
            Location loc = player.getLocation();
            if (!PlayersThatHaveParticles.contains(player.getName()))
               PlayersThatHaveParticles.add(player.getName());
            Bukkit.getServer().getScheduler().scheduleSyncRepeatingTask(plugin, new Runnable() {

                @Override
                public void run() {
                    for (Player p : Bukkit.getServer().getOnlinePlayers()) {
                    loc.getWorld().playEffect(player.getLocation().add(0, 0, 0), Effect.HAPPY_VILLAGER, 50000);
                        }
                    }
                   
                }, 0, 1);
            e.getWhoClicked().closeInventory();
        } 
       
        if (e.getCurrentItem().getItemMeta().getDisplayName().contains("Stop Emerald")) {
            if (!e.getInventory().getName().equalsIgnoreCase(inventory.getName())) return;
            if (e.getCurrentItem().getItemMeta() == null) return;
                e.setCancelled(true);
                Location loc = player.getLocation();
                PlayersThatHaveParticles.remove(player.getName());
                Bukkit.getScheduler().cancelAllTasks();
                e.getWhoClicked().closeInventory();
        }
       
        if (e.getCurrentItem().getItemMeta().getDisplayName().contains("Fire")) {
            if (!e.getInventory().getName().equalsIgnoreCase(inventory.getName())) return;
            if (e.getCurrentItem().getItemMeta() == null) return;
                e.setCancelled(true);
                Location loc = player.getLocation();
                if (!PlayersThatHaveParticles.contains(player.getName()))
                   PlayersThatHaveParticles.add(player.getName());
                Bukkit.getServer().getScheduler().scheduleSyncRepeatingTask(plugin, new Runnable() {

                    @Override
                    public void run() {
                        for (Player p : Bukkit.getServer().getOnlinePlayers()) {
                        loc.getWorld().playEffect(player.getLocation().add(0, 0, 0), Effect.MOBSPAWNER_FLAMES, 50000);
                            }
                        }
                       
                    }, 0, 1);
                e.getWhoClicked().closeInventory();
               
        }
        if (e.getCurrentItem().getItemMeta().getDisplayName().contains("Stop Fire")) {
            if (!e.getInventory().getName().equalsIgnoreCase(inventory.getName())) return;
            if (e.getCurrentItem().getItemMeta() == null) return;
                e.setCancelled(true);
                Location loc = player.getLocation();
                PlayersThatHaveParticles.remove(player.getName());
                Bukkit.getScheduler().cancelAllTasks();
                e.getWhoClicked().closeInventory();
        }
       
        if (e.getCurrentItem().getItemMeta().getDisplayName().contains("Hearts")) {
            if (!e.getInventory().getName().equalsIgnoreCase(inventory.getName())) return;
            if (e.getCurrentItem().getItemMeta() == null) return;
                e.setCancelled(true);
                Location loc = player.getLocation();
                if (!PlayersThatHaveParticles.contains(player.getName()))
                   PlayersThatHaveParticles.add(player.getName());
                Bukkit.getServer().getScheduler().scheduleSyncRepeatingTask(plugin, new Runnable() {

                    @Override
                    public void run() {
                        for (Player p : Bukkit.getServer().getOnlinePlayers()) {
                            loc.getWorld().playEffect(player.getEyeLocation().add(0, 0.5, 0), Effect.HEART, 1);
                            }
                        }
                       
                    }, 0, 1);
                e.getWhoClicked().closeInventory();
        }
       
        if (e.getCurrentItem().getItemMeta().getDisplayName().contains("Stop Hearts")) {
            if (!e.getInventory().getName().equalsIgnoreCase(inventory.getName())) return;
            if (e.getCurrentItem().getItemMeta() == null) return;
                e.setCancelled(true);
                Location loc = player.getLocation();
                PlayersThatHaveParticles.remove(player.getName());
                Bukkit.getScheduler().cancelAllTasks();
                e.getWhoClicked().closeInventory();
        }
       
    }

    @Override
    public void run() {
        // TODO Auto-generated method stub
       
    }

}
    Any help is much appreciated!
     
    plisov, Jul 23, 2015
    #1
  2. Offline

    DoggyCode™

    Apparantly, your error is here:
    Code:
    Player player = (Player) e.getWhoClicked();
    Why? Don't know..
     
    DoggyCode™, Jul 23, 2015
    #2
  3. Offline

    plisov

    Thats what i'm saying. dont know either. lol
     
    plisov, Jul 23, 2015
    #3
  4. Offline

    bazsi700

    I'm not so sure. At the beggining before package there is an empty line. Maybe it isn't counted and its the line:

    Code:
    if (e.getCurrentItem().getItemMeta().getDisplayName().contains("Smoke")) {
    If it is, then maybe gives the error because you clicked air and it doesn't really have itemmeta.
     
    bazsi700, Jul 23, 2015
    #4
  5. Offline

    plisov

    What do you mean by "not counted"?
     
    plisov, Jul 23, 2015
    #5
  6. Offline

    bazsi700

    I mean the first line isn't the empty line but the package.
     
    bazsi700, Jul 23, 2015
    #6
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