Solved Error really needs help :(

Im getting this error when i use my plugins (a teleporting bow) and in startup!!! here is the error

Code:

17:22:41  [Server thread/ERROR]: Could not pass event ProjectileHitEvent to TeleportBow v2.0
17:22:41 org.bukkit.event.EventException
17:22:41 at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:320) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:41 at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:41 at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:481) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:41 at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:466) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:41 at org.bukkit.craftbukkit.v1_7_R1.event.CraftEventFactory.callProjectileHitEvent(CraftEventFactory.java:603) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:41 at net.minecraft.server.v1_7_R1.EntityArrow.h(EntityArrow.java:209) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:41 at net.minecraft.server.v1_7_R1.World.entityJoinedWorld(World.java:1338) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:41 at net.minecraft.server.v1_7_R1.World.playerJoinedWorld(World.java:1319) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:41 at net.minecraft.server.v1_7_R1.World.tickEntities(World.java:1207) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:41 at net.minecraft.server.v1_7_R1.WorldServer.tickEntities(WorldServer.java:480) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:41 at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:637) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:41 at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:250) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:41 at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:545) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:41 at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:457) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:41 at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:41 Caused by: java.lang.NullPointerException
17:22:41 at me.Glassbillen.TeleportBow.TeleportBow.onProjectileHitEvent(TeleportBow.java:51) ~[?:?]
17:22:41 at sun.reflect.GeneratedMethodAccessor1217.invoke(Unknown Source) ~[?:?]
17:22:41 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_25]
17:22:41 at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_25]
17:22:41 at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:318) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:41 ... 14 more
17:22:42  [Server thread/ERROR]: Could not pass event ProjectileHitEvent to TeleportBow v2.0
17:22:42 org.bukkit.event.EventException
17:22:42 at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:320) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:481) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:466) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at org.bukkit.craftbukkit.v1_7_R1.event.CraftEventFactory.callProjectileHitEvent(CraftEventFactory.java:603) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.EntityArrow.h(EntityArrow.java:209) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.World.entityJoinedWorld(World.java:1338) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.World.playerJoinedWorld(World.java:1319) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.World.tickEntities(World.java:1207) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.WorldServer.tickEntities(WorldServer.java:480) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:637) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:250) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:545) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:457) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 Caused by: java.lang.NullPointerException
17:22:42 at me.Glassbillen.TeleportBow.TeleportBow.onProjectileHitEvent(TeleportBow.java:51) ~[?:?]
17:22:42 at sun.reflect.GeneratedMethodAccessor1217.invoke(Unknown Source) ~[?:?]
17:22:42 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_25]
17:22:42 at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_25]
17:22:42 at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:318) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 ... 14 more
17:22:42  [Server thread/ERROR]: Could not pass event ProjectileHitEvent to TeleportBow v2.0
17:22:42 org.bukkit.event.EventException
17:22:42 at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:320) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:481) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:466) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at org.bukkit.craftbukkit.v1_7_R1.event.CraftEventFactory.callProjectileHitEvent(CraftEventFactory.java:603) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.EntityArrow.h(EntityArrow.java:209) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.World.entityJoinedWorld(World.java:1338) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.World.playerJoinedWorld(World.java:1319) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.World.tickEntities(World.java:1207) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.WorldServer.tickEntities(WorldServer.java:480) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:637) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:250) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:545) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:457) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 Caused by: java.lang.NullPointerException
17:22:42 at me.Glassbillen.TeleportBow.TeleportBow.onProjectileHitEvent(TeleportBow.java:51) ~[?:?]
17:22:42 at sun.reflect.GeneratedMethodAccessor1217.invoke(Unknown Source) ~[?:?]
17:22:42 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_25]
17:22:42 at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_25]
17:22:42 at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:318) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks]
17:22:42 ... 14 more

How do i fix this!!!
Here is my main class:

Code:

package me.Glassbillen.TeleportBow;
 
import java.util.logging.Logger;
 
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Arrow;
import org.bukkit.entity.Player;
import org.bukkit.entity.Projectile;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.ProjectileHitEvent;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.plugin.java.JavaPlugin;
 
public class TeleportBow extends JavaPlugin implements Listener {
    public final Logger logger = Logger.getLogger("Minecraft");
    public static TeleportBow plugin;
   
    SettingsManager settings = SettingsManager.getInstance();
 
    @Override
    public void onDisable() {
        getLogger().info("TeleportBow has been disabled!");
    }
   
    @Override
    public void onEnable() {
        getLogger().info("TeleportBow has been enabled!");
        Bukkit.getPluginManager().registerEvents(this, this);
        settings.setup(this);
    }
   
    @EventHandler
    public void onProjectileHitEvent(ProjectileHitEvent event) {
 
    if (!(event.getEntity().getShooter() instanceof Player)) return;
 
    if (event.getEntity() instanceof Arrow) {
 
    Player player = (Player) event.getEntity().getShooter();
    Projectile proj = event.getEntity();
 
    if (player.getItemInHand().getItemMeta().getDisplayName().equalsIgnoreCase("TPBow")) {
 
    player.teleport(proj.getLocation());
    }
    }
    }

 

player.getIteminHand can be null, therefor calling any submethod without adequate checking = null pointer

 

How do i fix that clienthax ? (i hope i dont need to remove TPBow name beacus i dont want all bows to be tpbows

 

glassbillen
Add a null check. If it's null then return.
Also check if the item has an ItemMeta

 

Gater12 how do it do that

 

glassbillen
It's very simple.

Code:java

if(p.getItemInHand() == null) return;
if(!p.getItemInHand().hasItemMeta()) return;

Null checks are basically: if this is null, then return or if this isn't null continue.

 

And where should i put that? Gater12

Bump, anyone knows where i should put the Null check and ItemData check

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

glassbillen
Think about it.

 

nvm, i got it fixed