Fehler mit PlayerInteractEvent

[GermanCrazyCraft]

Hallo liebe Community;
ich will ein PlayerInteractEvent abfangen, was auch klappt aber immer wenn ich nur in die Luft schlage kommt ne Fehler meldung:

Code:

package de.bagpack;

import org.bukkit.Material;
import org.bukkit.Sound;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.Listener;
import org.bukkit.event.block.Action;
import org.bukkit.event.player.PlayerInteractEvent;

public class UseBagPack implements Listener {
	
	@EventHandler(priority = EventPriority.LOW)
	public void PlayerClick(PlayerInteractEvent e){
		
		Action action = e.getAction();
		Player p = e.getPlayer();
		
		if(action.equals(Action.RIGHT_CLICK_AIR)){
			if(p.getItemInHand().getItemMeta().getDisplayName().equalsIgnoreCase("§3Rucksack") && (p.getItemInHand().getType() == Material.ENDER_CHEST)){
				p.playSound(p.getLocation(), Sound.HORSE_SADDLE, 10, 1);
				p.openInventory(p.getEnderChest());
				return;
			}
		}
	}
}

Fehler:

[14:48:57 ERROR]: Could not pass event PlayerInteractEvent to RPGAPI2014 v0.2
org.bukkit.event.EventException
>       at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:320) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
>       at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
>       at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:486) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
>       at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:471) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
>       at org.bukkit.craftbukkit.v1_7_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:195) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
>       at org.bukkit.craftbukkit.v1_7_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:165) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
>       at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:604) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
>       at net.minecraft.server.v1_7_R1.PacketPlayInBlockPlace.a(SourceFile:60) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
>       at net.minecraft.server.v1_7_R1.PacketPlayInBlockPlace.handle(SourceFile:9) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
>       at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:146) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
>       at net.minecraft.server.v1_7_R1.ServerConnection.c(SourceFile:134) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
>       at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:655) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
>       at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:250) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
>       at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:545) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
>       at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:457) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
>       at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
Caused by: java.lang.NullPointerException
>       at de.bagpack.UseBagPack.PlayerClick(UseBagPack.java:21) ~[?:?]
>       at sun.reflect.GeneratedMethodAccessor46.invoke(Unknown Source) ~[?:?]
>       at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
>       at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_51]
>       at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:318) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
>       ... 15 more

Kann mir bitte wer helfen? Über Verbesserungsvorschläge wäre ich sehr erfreut!
Danke im Vorraus
Mfg Nico

 

[games6471]

Bist du dir sicher, dass der Spieler auch ein Item in der Hand hält?

 

[GermanCrazyCraft]

Die Meldung kommt nur, wenn er ein anderes Item als die Ender-Chest in der hand hat.

 

[MiCrJonas]

Du musst testen, ob der ItemStack auch ItemMeta hat (hasItemMeta()), bevor du auf dieses die Methode getDisplayName() aufrufst.

 

[Howha]

Außerdem noch prüfen, ob der Spieler überhaupt ein Item in der Hand hat und ob dieses einen Displaynamen hat.

 

[GermanCrazyCraft]

Oke danke

 

[McPlayHD]

und verwende doch mal das:

if((e.getAction() == Action.RIGHT_CLICK_AIR) {