Solved NPE at Startup. None if /reload

Hey guys.

if I start my local server to test my plugin I get a NPE

Show Spoiler Hide Spoiler

Code:

18:40:12 [SEVERE] Could not load 'plugins\cookieclicker.jar' in folder 'plugins'
 
org.bukkit.plugin.InvalidPluginException: java.lang.NullPointerException
        at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.j
ava:182)
        at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.
java:305)
        at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager
.java:230)
        at org.bukkit.craftbukkit.v1_6_R2.CraftServer.loadPlugins(CraftServer.ja
va:239)
        at org.bukkit.craftbukkit.v1_6_R2.CraftServer.<init>(CraftServer.java:21
7)
        at net.minecraft.server.v1_6_R2.PlayerList.<init>(PlayerList.java:56)
        at net.minecraft.server.v1_6_R2.DedicatedPlayerList.<init>(SourceFile:11
)
        at net.minecraft.server.v1_6_R2.DedicatedServer.init(DedicatedServer.jav
a:106)
        at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java
:391)
        at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:5
82)
Caused by: java.lang.NullPointerException
        at com.github.l33m4n123.cookieclicker.CookieClicker.<init>(CookieClicker
.java:30)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
 
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
 
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Sou
rce)
        at java.lang.reflect.Constructor.newInstance(Unknown Source)
        at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.j
ava:178)
        ... 9 more

and the plugin wont load. So. If I do a /reload however. The Plugin loads fine.

IF I understand the stacktrace correct the NPE is at my CookieClicker class at line 30.

Here are my lines 29,30 and 31

Show Spoiler Hide Spoiler

Code:java

 private ScoreboardManager manager = Bukkit.getScoreboardManager(); // line 29
private Scoreboard board = manager.getNewScoreboard(); // line 30
private Objective objective = board.registerNewObjective("test", "dummy"); // line 31

So. What confueses me. Why does it throws a NPE if I do a regular start up but works fine if I reload the server via console while noone is online

More infos:

My onEnable()

Show Spoiler Hide Spoiler

Code:java

@Override
public void onEnable() {
// TODO Insert logic to be performed when the plugin is enabled
getServer().getPluginManager().registerEvents(this, this);
cookieCheck();
}

the function cookieCheck();

Show Spoiler Hide Spoiler

Code:java

public void cookieCheck() {
this.getServer().getScheduler()
.scheduleSyncRepeatingTask(this, new BukkitRunnable() {
public void run() {
// Do stuff
int roundCps = (int) Math.round(cookiePerSecond);
int newScore = cookie.getScore() + roundCps;
cookie.setScore(newScore);
}
}, 100L, 100L);
}

The .bat file of how I start my server

Show Spoiler Hide Spoiler

java -Xmx1024M -Xms1024M -jar craftbukkit-1.6.2-R1.0.jar

Anyone any tips?

 

L33m4n123
Perhaps Bukkit's ScoreboardManager is initialized before the plugins are enabled, but after the plugins are loaded. Try initializing those three variables inside of onEnable.

 

Technius

Cheers. Solved my issue. Should have checked that earlier.. Can rewrite about 5 hours of work.. lol