could not pass event PlayerJointEvent

this is what it give me in my console :

Code:

Could not pass event PlayerJoinEvent to CTO v1.0
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427) ~[spigot.jar:git-Spigot-1223]
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-1223]
    at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:30) ~[spigot.jar:git-Spigot-1223]
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:482) [spigot.jar:git-Spigot-1223]
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:467) [spigot.jar:git-Spigot-1223]
    at net.minecraft.server.v1_7_R1.PlayerList.c(PlayerList.java:225) [spigot.jar:git-Spigot-1223]
    at net.minecraft.server.v1_7_R1.PlayerList.a(PlayerList.java:116) [spigot.jar:git-Spigot-1223]
    at net.minecraft.server.v1_7_R1.LoginListener.c(LoginListener.java:87) [spigot.jar:git-Spigot-1223]
    at net.minecraft.server.v1_7_R1.LoginListener.a(LoginListener.java:42) [spigot.jar:git-Spigot-1223]
    at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:150) [spigot.jar:git-Spigot-1223]
    at net.minecraft.server.v1_7_R1.ServerConnection.c(SourceFile:134) [spigot.jar:git-Spigot-1223]
    at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:657) [spigot.jar:git-Spigot-1223]
    at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:273) [spigot.jar:git-Spigot-1223]
    at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:540) [spigot.jar:git-Spigot-1223]
    at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:446) [spigot.jar:git-Spigot-1223]
    at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [spigot.jar:git-Spigot-1223]
Caused by: java.lang.NullPointerException
    at me.firstminigame.CTO.onPlayerJoin(CTO.java:111) ~[?:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.6.0_65]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) ~[?:1.6.0_65]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) ~[?:1.6.0_65]
    at java.lang.reflect.Method.invoke(Method.java:597) ~[?:1.6.0_65]
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425) ~[spigot.jar:git-Spigot-1223]
    ... 15 more
>

 

At least your code?

 

Code:

package me.firstminigame;
 
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.scoreboard.DisplaySlot;
import org.bukkit.scoreboard.Objective;
import org.bukkit.scoreboard.Score;
import org.bukkit.scoreboard.Scoreboard;
import org.bukkit.scoreboard.ScoreboardManager;
 
 
public class CTO extends JavaPlugin implements Listener {
    public static CTO instance;
    public static CTO plugin;
   
    ScoreboardManager sbManager = null;
    Scoreboard sBoard = null;
   
    Objective first = null;
    Objective second = null;
    Objective third = null;
    Objective fourth = null;
    Objective fifth = null;
    Objective sixth = null;
    Objective seventh = null;
    Objective eighth = null;
   
    Score fst = null;
    Score snd = null;
    Score thd = null;
    Score fth = null;
    Score fith = null;
    Score sth = null;
    Score seth = null;
    Score eth = null;
   
    @Override
    public void onEnable() {
        getServer().getPluginManager().registerEvents(this, this);
    instance = this;
   
    sbManager = Bukkit.getScoreboardManager();
    sBoard = sbManager.getNewScoreboard();
       
       
        first = sBoard.registerNewObjective("first", "dummy");
        second = sBoard.registerNewObjective("second", "dummy");
        third = sBoard.registerNewObjective("third", "dummy");
        fourth = sBoard.registerNewObjective("fourth", "dummy");
        fifth = sBoard.registerNewObjective("fifth", "dummy");
        sixth = sBoard.registerNewObjective("sixth", "dummy");
        seventh = sBoard.registerNewObjective("seventh", "dummy");
        eighth = sBoard.registerNewObjective("eight", "dummy");
 
        first.setDisplaySlot(DisplaySlot.SIDEBAR);
        second.setDisplaySlot(DisplaySlot.SIDEBAR);
        third.setDisplaySlot(DisplaySlot.SIDEBAR);
        fourth.setDisplaySlot(DisplaySlot.SIDEBAR);
        fifth.setDisplaySlot(DisplaySlot.SIDEBAR);
        sixth.setDisplaySlot(DisplaySlot.SIDEBAR);
        seventh.setDisplaySlot(DisplaySlot.SIDEBAR);
        eighth.setDisplaySlot(DisplaySlot.SIDEBAR);
       
        first.setDisplayName(ChatColor.AQUA + "    Welcome to");
        second.setDisplayName(ChatColor.GREEN + " SoMinecrafty");
        third.setDisplayName("---------------------");
        fourth.setDisplayName("");
        fifth.setDisplayName(ChatColor.DARK_RED + "Visit us at");
        sixth.setDisplayName(ChatColor.BLACK + "sominecrafty.com");
        seventh.setDisplayName("");
        eighth.setDisplayName("---------------------");
       
        for(Player online : Bukkit.getOnlinePlayers()){
       
        Score fst = first.getScore(online);
        fst.setScore(8);
       
        Score snd = second.getScore(online);
        snd.setScore(7);
       
        Score thd = third.getScore(online);
        thd.setScore(6);
       
        Score fth = fourth.getScore(online);
        fth.setScore(5);
       
        Score fith = fifth.getScore(online);
        fith.setScore(4);
       
        Score sth = sixth.getScore(online);
        sth.setScore(3);
       
        Score seth = seventh.getScore(online);
        seth.setScore(2);
       
        Score eth = eighth.getScore(online);
        eth.setScore(1);
       
        }
    }
       
        @EventHandler
        public void onPlayerJoin(PlayerJoinEvent event){
       
       
    for ( Player player : plugin.getServer().getOnlinePlayers() ) {
    player.setScoreboard(sBoard);
       
   
   
           
 
        }
    }
}
   
 
 
       
       
    

 

why loop through the whole player list when a player joins? why not just send the scoreboard to that player that fired the event when they join?

 

This is only my second plugin so can u give me an example please?

 

What you want to do is, when a player joins, to send them the scoreboard and nobody else.. its a waste to send it to other players that are already on the server and have a scoreboard already from when they joined, here is an example:

Code:java

    @EventHandler (priority = EventPriority.MONITOR)
    public void onPlayerJoin(PlayerJoinEvent event){
        Player player = event.getPlayer();
        player.setScoreboard(sBoard); 
    }

that code should work fine, I have not tested it tho.

 

im gonna test it now

 

there might be other problems in your code causing this too, make sure when players leave that it removes the scoreboard, as its good pratice to do so.

 

The scoreboard works now but only one objective comes up and my name is not suppose to be there

 

screenshot?

 

The scoreboard is always suppose to stay there its a display.

file://localhost/Users/denis/Library/Application%20Support/minecraft/screenshots/2014-02-11_13.07.37.png

how do i put a screenshot?

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

 

try using gyazo? or imgur?

 

ok

teozfrank
http://imgur.com/xCM5oX1

teozfrank

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

 

check this out:

https://forums.bukkit.org/threads/tutorial-scoreboards-teams-with-the-bukkit-api.139655/

 

teozfrank
Thats what i used

Thats what i used

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

 

I havnt dealt with multiple objectives on scoreboards yet, so im not sure. Pretty sure someone else can help with this

 

You know anyone who can help me?

 

I managed to get multiple scores showing in one of my plugins, you need one single objective, and multiple scores. Then add the scores to each objective.

 

Uhhh, not sure if spigot talk is allowed here, and what I mean by that, is that your error could be spigot related, and since it's not really bukkit, its considered a topic to avoid or something.

Edit:
Didn't/don't have time to read above, but you have a null exception error.

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