Score Board NPE Issue :(

I have spen a while trying to switch over to the new scoreboard api in my plugin. BUT, it is not off to a god start. Whenever I load up the plugin for the first time, I get the following NPE…

Code:

19:04:45 [SEVERE] Could not load 'plugins/MCFTF2.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.NullPointerException
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:182)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:305)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:230)
    at org.bukkit.craftbukkit.v1_5_R2.CraftServer.loadPlugins(CraftServer.java:239)
    at org.bukkit.craftbukkit.v1_5_R2.CraftServer.<init>(CraftServer.java:217)
    at net.minecraft.server.v1_5_R2.PlayerList.<init>(PlayerList.java:55)
    at net.minecraft.server.v1_5_R2.DedicatedPlayerList.<init>(SourceFile:11)
    at net.minecraft.server.v1_5_R2.DedicatedServer.init(DedicatedServer.java:105)
    at net.minecraft.server.v1_5_R2.MinecraftServer.run(MinecraftServer.java:381)
    at net.minecraft.server.v1_5_R2.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.NullPointerException
    at com.hackintoshman.mcftf2.MCFTF2.<init>(MCFTF2.java:34)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:178)
    ... 9 more

With the following code:

Code:java

package com.hackintoshman.mcftf2;
 
import java.io.File;
 
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.PlayerDeathEvent;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.event.player.PlayerQuitEvent;
import org.bukkit.event.player.PlayerRespawnEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.scoreboard.Scoreboard;
import org.bukkit.scoreboard.ScoreboardManager;
import org.bukkit.scoreboard.Team;
 
import com.hackintoshman.mcftf2.commands.CommandKD;
import com.hackintoshman.mcftf2.commands.CommandSetPoints;
import com.hackintoshman.mcftf2.commands.CommandTeam;
 
public class MCFTF2 extends JavaPlugin implements Listener {
 
public String PREFIX = ChatColor.GREEN + "" + ChatColor.BOLD + "[MCFTF2] "
+ ChatColor.AQUA;
public int redScore = 0;
public int blueScore = 0;
public int gameTime;
public boolean isCTF;
public ScoreboardManager manager = Bukkit.getScoreboardManager();
public Scoreboard board = manager.getNewScoreboard();
public Team red = board.registerNewTeam("Red");
public Team blue = board.registerNewTeam("Blue");
 
@Override
public void onEnable() {
 
System.out.println("[MCFTF2] Loading the scoreboard...");
scoreBoardHandler();
 
System.out.println("[MCFTF2] Loading config...");
loadConfig();
 
getCommand("kd").setExecutor(new CommandKD(this));
getCommand("setpoint").setExecutor(new CommandSetPoints(this));
getCommand("team").setExecutor(new CommandTeam(this));
 
getServer().getPluginManager().registerEvents(new CaptureTheFlagHandler(this), this);
getServer().getPluginManager().registerEvents(this, this);
}
 
@Override
public void onDisable() {
 
System.out.println("[MCFTF2] MCFTF2 succesfully disabled!");
System.out.println("[MCFTF2] Thanks for using!");
saveConfig();
}

I have no clue as to why this is happening(It is null on lion 34 I know THAT) and how to fix it. I have tried to register(if that is what its called) in the onEnable.

 

Initialize the variables on lines 33 and 34 in your onEnable.

 

You are setting the scoreboard manager object before the scoreboard manager for the server has been initialized.
Try setting the scoreboard manager and scoreboard in your onEnable.

 

Like this?

In the class :

Code:java

public ScoreboardManager manager;
public Scoreboard board;
public  Team red;
public Team blue;

and in the onEnable:

Code:java

manager = Bukkit.getScoreboardManager();
board = manager.getNewScoreboard();
board.registerNewTeam("Red");
board.registerNewTeam("Blue");

 

Yep that should work.

 

I have fixed the issue, but I am having a hard time seeing if a player is on a team or not…

 

Put heaps of spaces on each side of the Red so it looks like

Code:java

board.registerNewTeam("        Red         ");