[Unsolved] IllegalStateExeception error...Failed to add player

Basically this error pops up around a players death. Not sure what it means.

Code:

[Server] WARN Caused by: java.lang.IllegalStateException: Failed to add player. EntityPlayer['PlayerName'/49, l='world', x=0.50, y=66.00, z=0.50]

If someone could explain what this represents that would be very much appreciated.
Thank you in advance

 

Are you trying to create a Player entity or something?

 

Here is my player death event.

Code:java

    public void onPlayerDeathEvent(PlayerDeathEvent event) {
        final Player p = (Player) event.getEntity();
        final Player KP = (Player) event.getEntity().getKiller();
        shootFireworks();
        Players.remove(p);
        Waiting.remove(p);
        if(event.getEntity().getKiller() instanceof Player){
            File file = new File("plugins" + File.separator + "SnipeCraft" + File.separator + "Players" + File.separator + KP.getName() + ".yml");
            FileConfiguration conf = YamlConfiguration.loadConfiguration(file);
            File file2 = new File("plugins" + File.separator + "SnipeCraft" + File.separator + "Players" + File.separator + p.getName() + ".yml");
            FileConfiguration conf2 = YamlConfiguration.loadConfiguration(file2);
 
            event.setDeathMessage(ChatColor.GRAY + KP.getName() + ChatColor.GOLD + " Killed " + ChatColor.GRAY + p.getName());
            KP.sendMessage(ChatColor.GREEN +"+5 " + ChatColor.GOLD + "Coins");
              conf.set("Money", conf.getInt("Money") + 5);
              conf.set("Kills", conf.getInt("Kills") + 1);
              conf2.set("Deaths", conf2.getInt("Deaths") + 1);
              try {
                    conf.save(file);
                    conf2.save(file2);
                } catch (IOException e) {
                    e.printStackTrace();
                }
    }
 
        if(!Waiting.isEmpty()){
            ItemStack BOW = new ItemStack(Material.BOW);
            BOW.addUnsafeEnchantment(Enchantment.ARROW_KNOCKBACK, 10);
            int i = new Random().nextInt(Waiting.size());
            Player p2 = getServer().getOnlinePlayers()[i];
            p2.teleport(new Location(Bukkit.getWorld("world"), -803, 125, 19));
            Players.add(p2);
            Waiting.remove(p2);
            p2.getInventory().addItem(new ItemStack(BOW));
            p2.getInventory().addItem(new ItemStack(Material.ARROW, 128));
            nextPlayer();
        }
 
        Bukkit.getScheduler().scheduleAsyncDelayedTask(this, new Runnable(){
              public void run() {
 
                  try {
                      Object nmsPlayer = p.getClass().getMethod("getHandle").invoke(p);
                      Object packet = Class.forName(nmsPlayer.getClass().getPackage().getName() + ".PacketPlayInClientCommand").newInstance();
                      Class<?> enumClass = Class.forName(nmsPlayer.getClass().getPackage().getName() + ".EnumClientCommand");
 
                      for(Object ob : enumClass.getEnumConstants()){
                      if(ob.toString().equals("PERFORM_RESPAWN")){
                      packet = packet.getClass().getConstructor(enumClass).newInstance(ob);
                      }
                      }
 
                      Object con = nmsPlayer.getClass().getField("playerConnection").get(nmsPlayer);
                      con.getClass().getMethod("a", packet.getClass()).invoke(con, packet);
                      }
                      catch(Throwable t){
                      t.printStackTrace();
                      }
                      }
            },10L);
}
[/i]

And my Player RespawnEvent

Code:java

@EventHandler
public void PlayerRespawn(PlayerRespawnEvent event){
    event.getPlayer().sendMessage(ChatColor.GRAY + "Type in " + ChatColor.GOLD + "/Commands" + ChatColor.GRAY + " for a complete list of commands");
    event.getPlayer().performCommand("Items");
}

Hoping this helps xD.

Forgot to tahg you.
The_Doctor_123

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

 

ASHninja1997
First off, is there a stack trace?

Secondly, don't run any tasks async unless you know it works. That code may or may not work.

 

The_Doctor_123
Stack trace

Code:

[Server] ERROR This crash report has been saved to: /./crash-reports/crash-2013-12-19_17.07.00-server.txt
19.12 17:07:00 [Server] INFO ... 4 more
19.12 17:07:00 [Server] INFO at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:637) ~[Bukkit_Dev.jar:git-Bukkit-1.7.2-R0.1-1-gd791c11-b2970jnks]
19.12 17:07:00 [Server] INFO at net.minecraft.server.v1_7_R1.WorldServer.tickEntities(WorldServer.java:480) ~[Bukkit_Dev.jar:git-Bukkit-1.7.2-R0.1-1-gd791c11-b2970jnks]
19.12 17:07:00 [Server] INFO at net.minecraft.server.v1_7_R1.World.tickEntities(World.java:1207) ~[Bukkit_Dev.jar:git-Bukkit-1.7.2-R0.1-1-gd791c11-b2970jnks]
19.12 17:07:00 [Server] INFO at net.minecraft.server.v1_7_R1.World.playerJoinedWorld(World.java:1319) ~[Bukkit_Dev.jar:git-Bukkit-1.7.2-R0.1-1-gd791c11-b2970jnks]
19.12 17:07:00 [Server] INFO at net.minecraft.server.v1_7_R1.World.entityJoinedWorld(World.java:1338) ~[Bukkit_Dev.jar:git-Bukkit-1.7.2-R0.1-1-gd791c11-b2970jnks]
19.12 17:07:00 [Server] INFO at net.minecraft.server.v1_7_R1.EntityPlayer.h(EntityPlayer.java:198) ~[Bukkit_Dev.jar:git-Bukkit-1.7.2-R0.1-1-gd791c11-b2970jnks]
19.12 17:07:00 [Server] INFO at java.util.LinkedList$ListItr.next(Unknown Source) ~[?:1.7.0_45]
19.12 17:07:00 [Server] INFO at java.util.LinkedList$ListItr.checkForComodification(Unknown Source) ~[?:1.7.0_45]
19.12 17:07:00 [Server] INFO Caused by: java.util.ConcurrentModificationException
19.12 17:07:00 [Server] INFO at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [Bukkit_Dev.jar:git-Bukkit-1.7.2-R0.1-1-gd791c11-b2970jnks]
19.12 17:07:00 [Server] INFO at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:457) [Bukkit_Dev.jar:git-Bukkit-1.7.2-R0.1-1-gd791c11-b2970jnks]
19.12 17:07:00 [Server] INFO at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:545) ~[Bukkit_Dev.jar:git-Bukkit-1.7.2-R0.1-1-gd791c11-b2970jnks]
19.12 17:07:00 [Server] INFO at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:250) ~[Bukkit_Dev.jar:git-Bukkit-1.7.2-R0.1-1-gd791c11-b2970jnks]
19.12 17:07:00 [Server] INFO at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:641) ~[Bukkit_Dev.jar:git-Bukkit-1.7.2-R0.1-1-gd791c11-b2970jnks]
19.12 17:07:00 [Server] INFO net.minecraft.server.v1_7_R1.ReportedException: Ticking entity
19.12 17:07:00 [Server] ERROR Encountered an unexpected exception
19.12 17:07:00 [Server] WARN ... 10 more
19.12 17:07:00 [Server] WARN at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:1125)
19.12 17:07:00 [Server] WARN at net.minecraft.server.v1_7_R1.PlayerList.moveToWorld(PlayerList.java:408)
19.12 17:07:00 [Server] WARN at net.minecraft.server.v1_7_R1.PlayerList.moveToWorld(PlayerList.java:501)
19.12 17:07:00 [Server] WARN at net.minecraft.server.v1_7_R1.PlayerChunkMap.addPlayer(PlayerChunkMap.java:130)
19.12 17:07:00 [Server] WARN at net.minecraft.server.v1_7_R1.PlayerChunk.a(PlayerChunk.java:33)
19.12 17:07:00 [Server] WARN Caused by: java.lang.IllegalStateException: Failed to add player. EntityPlayer['The_Archer_Bow'/31667, l='world', x=0.50, y=66.00, z=0.50](The_Archer_Bow at 0.5,66.0,0.5) already is in chunk 0, 0
19.12 17:07:00 [Server] WARN at java.lang.Thread.run(Unknown Source)
19.12 17:07:00 [Server] WARN at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
19.12 17:07:00 [Server] WARN at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
19.12 17:07:00 [Server] WARN at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
19.12 17:07:00 [Server] WARN at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftTask.run(CraftTask.java:53)
19.12 17:07:00 [Server] WARN at com.ASHninja1997.snipecraft.snipecraft$10.run(snipecraft.java:1108)
19.12 17:07:00 [Server] WARN at java.lang.reflect.Method.invoke(Unknown Source)
19.12 17:07:00 [Server] WARN at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
19.12 17:07:00 [Server] WARN at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
19.12 17:07:00 [Server] WARN at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
19.12 17:07:00 [Server] WARN java.lang.reflect.InvocationTargetException
19.12 17:07:00 [Server] WARN ... 10 more
19.12 17:07:00 [Server] WARN at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:1125)
19.12 17:07:00 [Server] WARN at net.minecraft.server.v1_7_R1.PlayerList.moveToWorld(PlayerList.java:408)
19.12 17:07:00 [Server] WARN at net.minecraft.server.v1_7_R1.PlayerList.moveToWorld(PlayerList.java:501)
19.12 17:07:00 [Server] WARN at net.minecraft.server.v1_7_R1.PlayerChunkMap.addPlayer(PlayerChunkMap.java:135)
19.12 17:07:00 [Server] WARN at net.minecraft.server.v1_7_R1.PlayerChunkMap.b(PlayerChunkMap.java:163)
19.12 17:07:00 [Server] WARN at java.util.ArrayList.contains(Unknown Source)
19.12 17:07:00 [Server] WARN at java.util.ArrayList.indexOf(Unknown Source)
19.12 17:07:00 [Server] WARN at net.minecraft.server.v1_7_R1.ChunkCoordIntPair.equals(SourceFile:26)
19.12 17:07:00 [Server] WARN Caused by: java.lang.NullPointerException
19.12 17:07:00 [Server] WARN at java.lang.Thread.run(Unknown Source)
19.12 17:07:00 [Server] WARN at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
19.12 17:07:00 [Server] WARN at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
19.12 17:07:00 [Server] WARN at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
19.12 17:07:00 [Server] WARN at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftTask.run(CraftTask.java:53)
19.12 17:07:00 [Server] WARN at com.ASHninja1997.snipecraft.snipecraft$10.run(snipecraft.java:1108)
19.12 17:07:00 [Server] WARN at java.lang.reflect.Method.invoke(Unknown Source)
19.12 17:07:00 [Server] WARN at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
19.12 17:07:00 [Server] WARN at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
19.12 17:07:00 [Server] WARN at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
19.12 17:07:00 [Server] WARN java.lang.reflect.InvocationTargetException
19.12 17:06:59 [Server] INFO ASHninja1997 Killed The_Archer_Bow
19.12 17:06:59 [Server] INFO The_Archer_Bow died

Oh ya the 'async task' is so when a player dies it auto-respawns them
I had some trouble on the Auto-respawn part so I looked up on how to auto-respawn and just about all the forums said to have a async task run after 10L so it works effectively.
I'm not arguing with you....I'm just telling you why i am using the async task if there is a better solution I would be happy to know. Thanks

 

Storing Player objects
Store their username instead. Solve about 50 problems this way.

 

ASHninja1997
That task doesn't need to be async.. nor should it. In fact, I believe that's why you're getting this error, I mean.. crash. Take a look at this:

Code:java

19.12 17:07:00 [Server] INFO Caused by: java.util.ConcurrentModificationException

Change it to a sync task.

clienthax
That's not the problem. That is only a memory-related issue.

 

The_Doctor_123, clienthax
Thank you both for your responses.....I will try what doctor has told me then if that doesn't work resolve to checking my data storing system. I will get back to you as soon as a I can with results. Thanks

The_Doctor_123
Yep that fixed it...Thank you so much my friend. Good night

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