Plugin Manager Error

I am making a plugin and when I try to run It a get a error.

Error:

Code:

2013-01-19 20:46:19 [INFO] [Stomper] Enabling Stomper v0.2
2013-01-19 20:46:19 [INFO] Stomper Enabled | Version 0.2
2013-01-19 20:46:19 [SEVERE] Error occurred while enabling Stomper v0.2 (Is it up to date?)
java.lang.NullPointerException
    at me.scorbin60943.stomper.events.PlayerListener.<init>(PlayerListener.java:14)
    at me.scorbin60943.stomper.Stomper.onEnable(Stomper.java:22)
    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:217)
    at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:457)
    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:381)
    at org.bukkit.craftbukkit.v1_4_6.CraftServer.loadPlugin(CraftServer.java:282)
    at org.bukkit.craftbukkit.v1_4_6.CraftServer.enablePlugins(CraftServer.java:264)
    at net.minecraft.server.v1_4_6.MinecraftServer.j(MinecraftServer.java:321)
    at net.minecraft.server.v1_4_6.MinecraftServer.e(MinecraftServer.java:300)
    at net.minecraft.server.v1_4_6.MinecraftServer.a(MinecraftServer.java:259)
    at net.minecraft.server.v1_4_6.DedicatedServer.init(DedicatedServer.java:149)
    at net.minecraft.server.v1_4_6.MinecraftServer.run(MinecraftServer.java:399)
    at net.minecraft.server.v1_4_6.ThreadServerApplication.run(SourceFile:849)

Main Class:

Code:

package me.scorbin60943.stomper;
 
import java.util.logging.Logger;
 
import me.scorbin60943.stomper.events.PlayerListener;
 
import org.bukkit.event.Listener;
import org.bukkit.plugin.PluginDescriptionFile;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;
 
public class Stomper extends JavaPlugin implements Listener{
    public final Logger logger = Logger.getLogger("Minecraft");
    public static Stomper plugin;
   
        @Override
        public void onEnable(){
            PluginDescriptionFile pdfFile = this.getDescription();
            this.logger.info(pdfFile.getName() + " Enabled" + " | Version " + pdfFile.getVersion());
           
            PluginManager pm = getServer().getPluginManager();
            pm.registerEvents(new PlayerListener(this), this);
            this.logger.info("-Loaded Events");
           
            getConfig().options().copyDefaults(true);
            this.saveDefaultConfig();
            this.logger.info("-Loaded Config");
        }
        @Override
        public void onDisable() {
            PluginDescriptionFile pdfFile = this.getDescription();
            this.logger.info(pdfFile.getName() + " Disabled");
       
            saveConfig();
            this.logger.info("-Saved Config");
            }
}

PlayerListener

Code:

package me.scorbin60943.stomper.events;
 
import me.scorbin60943.stomper.Stomper;
 
import org.bukkit.entity.Entity;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.EntityDamageEvent;
import org.bukkit.event.entity.EntityDamageEvent.DamageCause;
 
public class PlayerListener implements Listener {
    private Stomper plugin;
    int StompRange = plugin.getConfig().getInt("StompRange");
    int StomperMinFall = plugin.getConfig().getInt("StomperMinFall");
    int StompDamage = plugin.getConfig().getInt("StompDamage");
   
   
    public PlayerListener(Stomper plugin){
        this.plugin = plugin;
    }
   
    @EventHandler
    public void OnFall(EntityDamageEvent event){
        Entity ent = event.getEntity();
        if(ent instanceof Player){
                Player player = (Player) ent;
                if(event.getCause() == DamageCause.FALL){
                    if(event.getDamage() > StomperMinFall){
                        event.setCancelled(true);
                      if(StompDamage > 0){
                            player.damage(plugin.getConfig().getInt("StompDamage"));}
                    }
                    for(Entity nearby: player.getNearbyEntities(StompRange, StompRange, StompRange)){
                        if(nearby instanceof Player){
                            Player targetplayer = (Player) nearby;
                            targetplayer.damage(event.getDamage());
                        }
                    }
                }
        }
    }
}

please help.

Everyone has my permission to take this into eclipse and test it.

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

 

int StompRange = plugin.getConfig().getInt("StompRange");
My guess is getConfig is returning a null.

 

So what do I do to fix it?

 

put a default value after "StompRange"
int StompRange = plugin.getConfig().getInt("StompRange", 5);

 

Same error

 

When the PlayerListener class is instantiated, it is calling all of those variable declarations before setting plugin to the instance you passed in the constructor. Do this instead:

Code:

private Stomper plugin;
private int StompRange, StomperMinFall, StompDamage;
 
public PlayerListener(Stomper plugin){
    this.plugin = plugin;
    StompRange = plugin.getConfig().getInt("StompRange");
    StomperMinFall = plugin.getConfig().getInt("StomperMinFall");
    StompDamage = plugin.getConfig().getInt("StompDamage");
}

 

EnvisionRed scorbin60943
You could do it like envisionred said, or you could put those variables in the Stomper class instead.

 

thanks it works!